/* =====================================================
   CSS REFINADO - PÁGINA DE PREÇOS - PAPO REDAÇÃO
   Design alinhado, elegante e profissional
   ===================================================== */

/* =====================================================
   VARIÁVEIS CSS E DESIGN TOKENS
   ===================================================== */
:root {
    /* Cores Primárias */
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --primary-lighter: #60a5fa;
    --accent-blue: #2196f3;
    --accent-cyan: #29b6f6;
    
    /* Cores Secundárias */
    --secondary-green: #10b981;
    --secondary-green-light: #34d399;
    --secondary-red: #ef4444;
    --success: #10b981;
    
    /* Cores Neutras - Light Mode */
    --bg: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-quaternary: #e2e8f0;
    --text: #0f172a;
    --text-light: #475569;
    --text-lighter: #64748b;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --border-medium: #cbd5e1;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #06b6d4 100%);
    --gradient-text: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #06b6d4 100%);
    --gradient-button: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    --gradient-card: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
    
    /* Sombras Refinadas */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-primary: 0 4px 14px 0 rgba(37, 99, 235, 0.25);
    --shadow-primary-lg: 0 10px 30px 0 rgba(37, 99, 235, 0.3);
    --shadow-card: 0 20px 40px -12px rgba(0, 0, 0, 0.15);
    --shadow-card-hover: 0 25px 50px -12px rgba(0, 0, 0, 0.2);
    
    /* Espaçamentos Consistentes (base 4px) */
    --spacing-0: 0;
    --spacing-1: 0.25rem;   /* 4px */
    --spacing-2: 0.5rem;    /* 8px */
    --spacing-3: 0.75rem;   /* 12px */
    --spacing-4: 1rem;      /* 16px */
    --spacing-5: 1.25rem;   /* 20px */
    --spacing-6: 1.5rem;    /* 24px */
    --spacing-8: 2rem;      /* 32px */
    --spacing-10: 2.5rem;   /* 40px */
    --spacing-12: 3rem;     /* 48px */
    --spacing-16: 4rem;     /* 64px */
    --spacing-20: 5rem;     /* 80px */
    --spacing-24: 6rem;     /* 96px */
    
    /* Bordas Refinadas */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Transições Suaves */
    --transition-base: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Container Max Width */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1400px;
}

/* Footer Styles */
.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 0.75rem;
    line-height: 1.6;
}

/* Screen Reader Only - Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Light Theme - Força modo claro quando data-theme="light" */
[data-theme="light"] {
    --bg: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-quaternary: #e2e8f0;
    --text: #0f172a;
    --text-light: #475569;
    --text-lighter: #64748b;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --border-medium: #cbd5e1;
    --gradient-card: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
}

/* Dark Theme */
[data-theme="dark"] {
    --bg: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-quaternary: #475569;
    --text: #f8fafc;
    --text-light: #cbd5e1;
    --text-lighter: #94a3b8;
    --text-muted: #64748b;
    --border: #334155;
    --border-light: #1e293b;
    --border-medium: #475569;
    --gradient-card: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
}

/* =====================================================
   RESET E BASE REFINADO
   ===================================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* =====================================================
   NAVBAR REFINADA
   ===================================================== */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition-base);
    box-shadow: var(--shadow-xs);
}

[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.9);
    border-bottom-color: var(--border);
}

[data-theme="dark"] .navbar {
    background: rgba(15, 23, 42, 0.8);
    border-bottom-color: var(--border);
}

.nav-container {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: var(--spacing-4) var(--spacing-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: var(--transition-base);
    letter-spacing: -0.02em;
}

.logo:hover {
    transform: scale(1.02);
    filter: brightness(1.1);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-6);
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    display: flex;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-lighter);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--transition-base);
    position: relative;
    padding: var(--spacing-1) 0;
}

.nav-menu a:hover {
    color: var(--primary);
}

.nav-menu a[aria-current="page"] {
    color: var(--primary);
    font-weight: 600;
}

.nav-menu a[aria-current="page"]::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.btn-login {
    background: var(--gradient-button);
    color: white !important;
    padding: var(--spacing-2) var(--spacing-5);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    font-weight: 600;
    font-size: 0.9375rem;
    box-shadow: var(--shadow-sm);
}

.btn-login:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-primary);
    color: white !important;
}

.btn-login:active {
    transform: translateY(0);
}

.theme-toggle {
    background: transparent;
    border: 1.5px solid var(--border-medium);
    border-radius: var(--radius-full);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    color: var(--text);
}

.theme-toggle:hover {
    background: var(--bg-secondary);
    border-color: var(--primary);
    transform: scale(1.05);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-toggle i {
    font-size: 1.125rem;
}

.menu-toggle {
    display: none;
    background: transparent;
    border: 1.5px solid var(--border-medium);
    border-radius: var(--radius-md);
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    color: var(--text);
}

.menu-toggle:hover {
    background: var(--bg-secondary);
    border-color: var(--primary);
}

.menu-toggle i {
    font-size: 1.25rem;
}

/* =====================================================
   HERO SECTION REFINADO
   ===================================================== */
.hero {
    padding: var(--spacing-24) var(--spacing-6) var(--spacing-20);
    text-align: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(6, 182, 212, 0.05) 50%, rgba(37, 99, 235, 0.05) 100%);
    position: relative;
    overflow: hidden;
}

[data-theme="light"] .hero {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(6, 182, 212, 0.03) 50%, rgba(37, 99, 235, 0.03) 100%);
    background-color: var(--bg);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    pointer-events: none;
    animation: pulse 8s ease-in-out infinite;
}

[data-theme="light"] .hero::before {
    background: radial-gradient(circle, rgba(37, 99, 235, 0.04) 0%, transparent 70%);
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, var(--bg) 0%, transparent 50%, var(--bg) 100%);
    pointer-events: none;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    padding: var(--spacing-2) var(--spacing-5);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-6);
    animation: fadeInDown 0.6s ease;
}

[data-theme="light"] .hero-badge {
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.15);
}

.hero-badge i {
    color: #fbbf24;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-6);
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradient-shift 6s ease infinite, fadeInUp 0.8s ease;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content p {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto var(--spacing-8);
    line-height: 1.7;
    font-weight: 400;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-6);
    margin-top: var(--spacing-8);
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--text);
    font-weight: 500;
    font-size: 0.9375rem;
}

.hero-feature-item i {
    color: var(--success);
    font-size: 1rem;
}

/* =====================================================
   TRUST BAR REFINADO
   ===================================================== */
.trust-bar {
    padding: var(--spacing-12) var(--spacing-6);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    position: relative;
}

.trust-items {
    max-width: var(--container-2xl);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-8);
}

.trust-item {
    text-align: center;
    padding: var(--spacing-4);
    transition: var(--transition-base);
}

.trust-item:hover {
    transform: translateY(-2px);
}

.trust-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: white;
    font-size: 1.5rem;
    box-shadow: var(--shadow-primary);
    transition: var(--transition-base);
}

.trust-item:hover .trust-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-primary-lg);
}

.trust-number {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: var(--spacing-2);
    letter-spacing: -0.02em;
    transition: var(--transition-base);
}

.trust-item[data-count] .trust-number {
    font-variant-numeric: tabular-nums;
}

.trust-label {
    font-size: 0.9375rem;
    color: var(--text-light);
    font-weight: 500;
}

/* =====================================================
   PLANS CATEGORY TABS (Rounded Switch Style)
   ===================================================== */
.plans-category-section {
    padding: var(--spacing-16) var(--spacing-6) var(--spacing-8);
    background: var(--bg);
}

.plans-category-container {
    max-width: var(--container-2xl);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-8);
}

.category-tabs {
    display: inline-flex;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    padding: 4px;
    border: 1.5px solid var(--border);
    gap: 4px;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.category-tab {
    padding: var(--spacing-3) var(--spacing-6);
    border: none;
    background: transparent;
    color: var(--text-light);
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    z-index: 1;
}

.category-tab i {
    font-size: 1rem;
    transition: var(--transition-base);
}

.category-tab:hover:not(.active) {
    color: var(--text);
    background: var(--bg-tertiary);
}

.category-tab.active {
    background: var(--bg);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

.category-tab.active i {
    color: var(--primary);
}

.category-tab:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* =====================================================
   PLANS SECTIONS VISIBILITY
   ===================================================== */
.plans-section {
    display: none;
    animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.plans-section.active-section {
    display: block;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =====================================================
   BILLING TOGGLE REFINADO
   ===================================================== */
.billing-section {
    padding: var(--spacing-16) var(--spacing-6) var(--spacing-12);
    text-align: center;
    background: var(--bg);
}

.billing-toggle {
    display: inline-flex;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    padding: 4px;
    border: 1.5px solid var(--border);
    gap: 4px;
    box-shadow: var(--shadow-sm);
}

.billing-btn {
    padding: var(--spacing-3) var(--spacing-6);
    border: none;
    background: transparent;
    color: var(--text-light);
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
    white-space: nowrap;
}

.billing-btn.active {
    background: var(--bg);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.billing-btn:hover:not(.active) {
    color: var(--text);
    background: var(--bg-tertiary);
}

.save-badge {
    background: var(--secondary-green);
    color: white;
    font-size: 0.75rem;
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-sm);
    margin-left: var(--spacing-2);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.savings-display {
    margin-top: var(--spacing-5);
    color: var(--secondary-green);
    font-weight: 600;
    font-size: 0.9375rem;
    display: none;
    animation: fadeInUp 0.5s ease;
}

.savings-display:not(:empty) {
    display: block;
}

/* =====================================================
   PLANS SECTION REFINADO
   ===================================================== */
.plans-container {
    padding: var(--spacing-20) var(--spacing-6);
    background: var(--bg-secondary);
}

.plans-grid {
    max-width: var(--container-2xl);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-8);
}

.plans-grid-escola {
    justify-content: center;
    max-width: 600px;
    grid-template-columns: 1fr;
}

.plan-card {
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    transition: var(--transition-smooth);
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}

.plan-card.chatgpt-style {
    border: 1.5px solid var(--border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-12) var(--spacing-10);
    background: var(--bg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.plan-card.chatgpt-style::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0;
    background: var(--gradient-primary);
    transition: height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 0;
}

.plan-card.chatgpt-style:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.plan-card.chatgpt-style:hover::before {
    height: 3px;
}

.plan-card.chatgpt-style > * {
    position: relative;
    z-index: 1;
}

.plan-card.chatgpt-style.featured {
    border: 2px solid var(--primary);
    box-shadow: var(--shadow-primary);
    background: var(--bg);
    position: relative;
}

.plan-card.chatgpt-style.featured:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-primary-lg);
    border-color: var(--primary);
}

.plan-card.chatgpt-style.featured .plan-name {
    color: var(--primary);
}

.plan-escola-card {
    max-width: 100%;
    margin: 0 auto;
}

.plan-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-card);
    border-radius: var(--radius-2xl);
    opacity: 0;
    transition: var(--transition-smooth);
    pointer-events: none;
}

.plan-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--primary);
}

.plan-card:hover::before {
    opacity: 1;
}

.plan-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-primary-lg);
    transform: scale(1.02);
    border-width: 2.5px;
    position: relative;
}

.plan-card.featured::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    z-index: -1;
    opacity: 0.3;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.5; }
}

.plan-card.featured::before {
    opacity: 1;
}

.plan-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.plan-badge {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    background: var(--primary);
    color: white;
    padding: var(--spacing-1) var(--spacing-4);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
    z-index: 10;
}

.plan-card.chatgpt-style .plan-badge {
    position: absolute;
    top: var(--spacing-6);
    right: var(--spacing-6);
    background: var(--primary);
    color: white;
    font-size: 0.6875rem;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-md);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    z-index: 5;
}

.plan-card.chatgpt-style.featured .plan-badge {
    background: var(--primary);
    box-shadow: var(--shadow-sm);
}

.plan-name {
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: var(--spacing-2);
    letter-spacing: -0.02em;
}

.plan-card.chatgpt-style .plan-name {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-3);
    letter-spacing: -0.01em;
}

.plan-card.chatgpt-style.featured .plan-name {
    font-size: 1.875rem;
    font-weight: 800;
}

.plan-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-8);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.plan-card.chatgpt-style .plan-description {
    margin-bottom: var(--spacing-6);
    font-size: 0.875rem;
}

.plan-price {
    margin-bottom: var(--spacing-8);
    padding-bottom: var(--spacing-6);
    border-bottom: 1px solid var(--border-light);
}

.price-main {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-1);
    margin-bottom: var(--spacing-2);
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-light);
}

.price-amount {
    font-size: 3.75rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
    letter-spacing: -0.03em;
}

.plan-card.chatgpt-style .price-amount {
    font-size: 2.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.plan-card.chatgpt-style.featured .price-amount {
    font-size: 3rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.plan-card.chatgpt-style .price-currency {
    font-size: 1.375rem;
    font-weight: 600;
}

.plan-card.chatgpt-style .price-period {
    font-size: 0.875rem;
    margin-top: var(--spacing-1);
    font-weight: 500;
}

.price-period {
    display: block;
    color: var(--text-light);
    font-size: 0.9375rem;
    margin-top: var(--spacing-2);
    font-weight: 500;
}

.price-old {
    display: none;
    color: var(--text-muted);
    text-decoration: line-through;
    font-size: 0.875rem;
    margin-top: var(--spacing-2);
}

.price-savings {
    display: none;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--secondary-green);
    font-weight: 600;
    font-size: 0.875rem;
    margin-top: var(--spacing-3);
    padding: var(--spacing-1) var(--spacing-3);
    background: rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-md);
}

.price-old.yearly-price,
.price-savings.yearly-price {
    display: block;
}

.price-savings.yearly-price {
    display: inline-flex;
}

.price-currency-hidden {
    display: none !important;
}

.price-amount-custom {
    font-size: 1.5rem !important;
}

.price-savings-custom {
    display: block !important;
    margin-top: var(--spacing-3);
    color: var(--success);
    font-weight: 600;
}

.plan-features {
    list-style: none;
    margin-bottom: var(--spacing-8);
    flex-grow: 1;
}

.plan-features li {
    padding: var(--spacing-3) 0;
    color: var(--text);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.plan-features li i {
    color: var(--secondary-green);
    margin-top: 2px;
    flex-shrink: 0;
    font-size: 1rem;
}

.plan-card.chatgpt-style .plan-features li {
    padding: var(--spacing-4) 0;
    align-items: center;
    gap: var(--spacing-4);
    font-size: 0.9375rem;
    transition: var(--transition-base);
}

.plan-card.chatgpt-style .plan-features li:hover {
    transform: translateX(4px);
    color: var(--primary);
}

.plan-card.chatgpt-style .plan-features li i {
    color: var(--text-light);
    font-size: 1.125rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
    transition: var(--transition-base);
}

.plan-card.chatgpt-style .plan-features li:hover i {
    color: var(--primary);
    transform: scale(1.1);
}

.plan-card.chatgpt-style.featured .plan-features li i {
    color: var(--primary-light);
}

.plan-features li strong {
    color: var(--text);
    font-weight: 600;
}

.btn {
    padding: var(--spacing-4) var(--spacing-6);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
    display: inline-block;
    text-align: center;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-button);
    color: white;
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-primary);
}

/* ChatGPT Style Buttons */
.btn-plan-current {
    background: var(--bg-tertiary);
    color: var(--text-light);
    border: 1px solid var(--border);
    cursor: not-allowed;
    opacity: 0.7;
}

.btn-plan-current:hover {
    transform: none;
    box-shadow: none;
}

.btn-plan-upgrade {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.btn-plan-upgrade:hover {
    background: var(--bg-secondary);
    border-color: var(--border-medium);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-plan-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
    box-shadow: var(--shadow-primary);
    font-weight: 700;
    position: relative;
    overflow: hidden;
}

.btn-plan-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-plan-primary:hover::before {
    left: 100%;
}

.btn-plan-primary:hover {
    background: var(--gradient-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary-lg);
}

.plan-card.chatgpt-style.featured .btn-plan-primary {
    background: var(--gradient-primary);
    box-shadow: var(--shadow-primary-lg);
    font-weight: 800;
    font-size: 1.0625rem;
    padding: var(--spacing-5) var(--spacing-8);
}

.plan-card.chatgpt-style.featured .btn-plan-primary:hover {
    box-shadow: var(--shadow-primary-lg), 0 0 20px rgba(37, 99, 235, 0.4);
    transform: translateY(-3px);
}

.btn-loader {
    display: none;
    margin-left: 0.5rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.plan-guarantee {
    margin-top: var(--spacing-6);
    padding-top: var(--spacing-6);
    border-top: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    color: var(--text-light);
    font-size: 0.875rem;
    font-weight: 500;
}

.plan-guarantee i {
    color: var(--secondary-green);
    font-size: 1rem;
}

/* =====================================================
   COMPARISON TABLE REFINADO
   ===================================================== */
.comparison-section {
    padding: var(--spacing-20) var(--spacing-6);
    background: var(--bg);
}

.comparison-container {
    max-width: var(--container-2xl);
    margin: 0 auto;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-4);
    color: var(--text);
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-16);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.comparison-table-wrapper {
    position: relative;
    margin-bottom: var(--spacing-6);
}

.comparison-table {
    background: var(--bg-secondary);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    border: 1px solid var(--border);
    overflow-x: auto;
    box-shadow: var(--shadow-md);
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--bg-tertiary);
}

.comparison-table::-webkit-scrollbar {
    height: 8px;
}

.comparison-table::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
}

.comparison-table::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: var(--radius-full);
}

.comparison-table::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

.comparison-mobile-note {
    display: none;
    text-align: center;
    padding: var(--spacing-4);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--text-light);
    font-size: 0.875rem;
    gap: var(--spacing-2);
    align-items: center;
    justify-content: center;
}

.comparison-mobile-note i {
    color: var(--primary);
}

.comparison-header {
    display: grid;
    grid-template-columns: 2fr repeat(5, 1fr);
    gap: var(--spacing-4);
    padding: var(--spacing-6) var(--spacing-6);
    background: var(--bg-tertiary);
    font-weight: 700;
    color: var(--text);
    border-bottom: 2px solid var(--border);
    font-size: 0.9375rem;
}

.comparison-row {
    display: grid;
    grid-template-columns: 2fr repeat(5, 1fr);
    gap: var(--spacing-4);
    padding: var(--spacing-5) var(--spacing-6);
    border-bottom: 1px solid var(--border);
    transition: var(--transition-base);
}

.comparison-row:hover {
    background: var(--bg-tertiary);
}

.comparison-row:last-child {
    border-bottom: none;
}

.feature-name {
    font-weight: 600;
    color: var(--text);
    font-size: 0.9375rem;
}

.feature-value {
    text-align: center;
    color: var(--text-light);
    font-size: 0.9375rem;
    font-weight: 500;
}

.check-icon {
    color: var(--secondary-green);
    font-size: 1.25rem;
}

.times-icon {
    color: var(--text-muted);
    font-size: 1.25rem;
}

/* =====================================================
   CALCULATOR SECTION REFINADO
   ===================================================== */
.calculator-section {
    padding: var(--spacing-20) var(--spacing-6);
    background: var(--bg-secondary);
}

/* Calculadora Compacta - Plano Escola */
.price-calculator-wrapper {
    margin: var(--spacing-8) 0;
}

.calculator-compact {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    margin-bottom: var(--spacing-6);
}

.calculator-compact h4 {
    color: white;
    margin-bottom: var(--spacing-4);
    font-size: 1.125rem;
    font-weight: 700;
}

.calculator-compact label {
    color: rgba(255, 255, 255, 0.95);
    display: block;
    margin-bottom: var(--spacing-2);
    font-weight: 500;
    font-size: 0.9375rem;
}

.calculator-compact input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.3);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.calculator-compact input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.calculator-compact input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-md);
}

.calculator-compact .student-display {
    font-size: 1.125rem;
    font-weight: 700;
    color: white;
    text-align: center;
    margin-top: var(--spacing-2);
}

.price-result-compact {
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-5);
    border-radius: var(--radius-lg);
    text-align: center;
    margin: var(--spacing-4) 0;
    backdrop-filter: blur(10px);
}

.price-result-compact .result-label {
    font-size: 0.875rem;
    opacity: 0.95;
    color: white;
    margin-bottom: var(--spacing-2);
}

.price-result-compact .result-main-price {
    font-size: 2.625rem;
    font-weight: 800;
    color: white;
    margin: var(--spacing-2) 0;
}

.price-result-compact .result-main-price .period {
    font-size: 1.25rem;
    opacity: 0.9;
}

.price-result-compact .result-subtitle {
    font-size: 0.875rem;
    color: white;
    opacity: 0.95;
}

.price-result-compact .savings-box {
    background: rgba(76, 175, 80, 0.25);
    border-radius: var(--radius-md);
    padding: var(--spacing-3);
    margin-top: var(--spacing-3);
}

.price-result-compact .savings-label {
    font-size: 0.75rem;
    opacity: 0.95;
    color: white;
    margin-bottom: var(--spacing-1);
}

.price-result-compact .savings-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin: var(--spacing-1) 0;
}

.price-result-compact .roi-value {
    font-size: 0.875rem;
    color: white;
}

.price-result-compact .yearly-note {
    margin-top: var(--spacing-3);
    padding: var(--spacing-2);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
}

.price-result-compact .yearly-note small {
    color: white;
    font-size: 0.75rem;
}

.calculator-compact .disclaimer {
    font-size: 0.75rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.85);
    margin-top: var(--spacing-2);
}

.calculator-card {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-12);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.calculator-label {
    display: block;
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--spacing-6);
    font-size: 1.125rem;
}

.slider-container {
    margin-bottom: var(--spacing-12);
}

.slider {
    width: 100%;
    height: 10px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: 3px solid white;
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: var(--shadow-primary);
}

.slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    cursor: pointer;
    border: 3px solid white;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.slider::-moz-range-thumb:hover {
    transform: scale(1.15);
    box-shadow: var(--shadow-primary);
}

.slider-value {
    text-align: center;
    margin-top: var(--spacing-4);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.02em;
}

.calculator-result {
    text-align: center;
}

.calculator-plan-note {
    color: var(--text-light);
    margin-bottom: var(--spacing-6);
    font-weight: 600;
}

.breakdown-label {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-2);
    font-weight: 600;
}

.breakdown-value {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: var(--spacing-1);
}

.breakdown-value-monthly {
    color: var(--text);
}

.breakdown-value-yearly {
    color: var(--success);
}

.breakdown-period {
    font-size: 0.8rem;
    color: var(--text-lighter);
    font-weight: 500;
}

.btn-calculator {
    margin-top: var(--spacing-8);
}

.result-label {
    color: var(--text-light);
    font-size: 1rem;
    margin-bottom: var(--spacing-4);
    font-weight: 500;
}

.result-value {
    font-size: 3.5rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-6);
    letter-spacing: -0.03em;
}

.result-breakdown {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-6);
    margin-top: var(--spacing-8);
    padding: var(--spacing-8);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
}

.breakdown-item {
    text-align: center;
}

/* =====================================================
   TESTIMONIALS SECTION REFINADO
   ===================================================== */
.testimonials-section {
    padding: var(--spacing-20) var(--spacing-6);
    background: var(--bg);
}

.testimonials-grid {
    max-width: var(--container-2xl);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
}

.testimonial-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    border: 1px solid var(--border);
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-5);
}

.testimonial-avatar {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.375rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-primary);
}

.testimonial-info h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--spacing-1);
    letter-spacing: -0.01em;
}

.testimonial-score {
    font-size: 0.875rem;
    color: var(--primary);
    font-weight: 600;
}

.testimonial-stars {
    color: #fbbf24;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-5);
    letter-spacing: 2px;
}

.testimonial-text {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* =====================================================
   FAQ SECTION REFINADO
   ===================================================== */
.faq-section {
    padding: var(--spacing-20) var(--spacing-6);
    background: var(--bg-secondary);
}

.faq-search-wrapper {
    max-width: 900px;
    margin: 0 auto var(--spacing-12);
}

.faq-search {
    position: relative;
    display: flex;
    align-items: center;
}

.faq-search i {
    position: absolute;
    left: var(--spacing-5);
    color: var(--text-lighter);
    font-size: 1.125rem;
    pointer-events: none;
}

.faq-search input {
    width: 100%;
    padding: var(--spacing-4) var(--spacing-4) var(--spacing-4) var(--spacing-12);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    transition: var(--transition-base);
    font-family: inherit;
}

.faq-search input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.faq-search input::placeholder {
    color: var(--text-lighter);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-4);
    border: 1.5px solid var(--border);
    overflow: hidden;
    transition: var(--transition-base);
    box-shadow: var(--shadow-xs);
}

.faq-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-6);
    background: transparent;
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-4);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text);
    transition: var(--transition-base);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--primary);
    flex-shrink: 0;
    font-size: 1rem;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-content {
    padding: 0 var(--spacing-6) var(--spacing-6);
    color: var(--text-light);
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* =====================================================
   CTA SECTION REFINADO
   ===================================================== */
.cta-section {
    padding: var(--spacing-24) var(--spacing-6);
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(6, 182, 212, 0.2) 0%, transparent 50%);
    pointer-events: none;
    animation: pulse 10s ease-in-out infinite;
}

.cta-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: var(--spacing-2) var(--spacing-5);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-6);
    animation: fadeInDown 0.6s ease;
}

.cta-badge i {
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-5);
    letter-spacing: -0.02em;
}

.cta-content > p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-10);
    opacity: 0.95;
    line-height: 1.6;
}

.cta-buttons {
    margin-bottom: var(--spacing-6);
}

.btn-white {
    background: white;
    color: var(--primary);
    padding: var(--spacing-4) var(--spacing-10);
    border-radius: var(--radius-lg);
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-3);
    transition: var(--transition-base);
    box-shadow: var(--shadow-xl);
    font-size: 1.0625rem;
    position: relative;
    overflow: hidden;
}

.btn-white::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-white:hover::before {
    width: 300px;
    height: 300px;
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.3);
}

.btn-white:hover i {
    transform: translateX(4px);
}

.btn-white i {
    transition: var(--transition-base);
}

.btn-white:active {
    transform: translateY(0);
}

.cta-features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-6);
    margin-top: var(--spacing-8);
}

.cta-feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: rgba(255, 255, 255, 0.95);
    font-weight: 500;
    font-size: 0.95rem;
}

.cta-feature-item i {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
}

/* =====================================================
   FOOTER REFINADO
   ===================================================== */
.footer {
    background: var(--bg-tertiary);
    padding: var(--spacing-16) var(--spacing-6) var(--spacing-12);
    border-top: 1px solid var(--border);
}

[data-theme="light"] .footer {
    background: var(--bg-secondary);
}

[data-theme="dark"] .footer {
    background: #0a0e1a;
}

.footer-content {
    max-width: var(--container-xl);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-10);
    margin-bottom: var(--spacing-12);
}

.footer-section h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: var(--spacing-5);
    letter-spacing: -0.02em;
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--spacing-5);
}

.footer-section p {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 0.9375rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-3);
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition-base);
    font-size: 0.9375rem;
    display: inline-block;
}

.footer-links a:hover {
    color: var(--primary);
    transform: translateX(4px);
}

.footer-bottom {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding-top: var(--spacing-8);
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-light);
    font-size: 0.875rem;
}

/* =====================================================
   RESPONSIVIDADE REFINADA
   ===================================================== */
@media (max-width: 768px) {
    .nav-container {
        padding: var(--spacing-4);
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background: var(--bg);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        flex-direction: column;
        padding: var(--spacing-6);
        gap: var(--spacing-4);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-smooth);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .category-tabs {
        width: 100%;
        max-width: 100%;
        justify-content: stretch;
        flex-wrap: wrap;
    }

    .category-tab {
        flex: 1;
        min-width: 100px;
        justify-content: center;
        padding: var(--spacing-2) var(--spacing-3);
        font-size: 0.875rem;
    }

    .category-tab span {
        display: none;
    }

    .category-tab i {
        font-size: 1.125rem;
    }

    .plan-card.chatgpt-style {
        padding: var(--spacing-8) var(--spacing-6);
    }

    .plan-card.chatgpt-style.featured {
        transform: scale(1);
    }

    .plan-card.chatgpt-style.featured:hover {
        transform: translateY(-6px);
    }
    
    .hero {
        padding: var(--spacing-16) var(--spacing-4) var(--spacing-12);
    }
    
    .plans-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .plan-card.featured {
        transform: none;
    }
    
    .plan-card {
        padding: var(--spacing-6);
    }
    
    .comparison-header,
    .comparison-row {
        grid-template-columns: 1.5fr repeat(5, 0.9fr);
        font-size: 0.875rem;
        gap: var(--spacing-2);
        padding: var(--spacing-4) var(--spacing-4);
    }

    .comparison-mobile-note {
        display: flex;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .result-breakdown {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
        padding: var(--spacing-6);
    }
    
    .trust-items {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-6);
    }
    
    .calculator-card {
        padding: var(--spacing-8);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--spacing-12) var(--spacing-4) var(--spacing-10);
    }
    
    .billing-toggle {
        flex-direction: column;
        width: 100%;
        max-width: 280px;
    }
    
    .billing-btn {
        width: 100%;
    }
    
    .price-amount {
        font-size: 2.75rem;
    }
    
    .comparison-header,
    .comparison-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-3);
    }
    
    .comparison-header > div:not(:first-child),
    .comparison-row > div:not(:first-child) {
        display: none;
    }

    .comparison-mobile-note {
        display: none;
    }
    
    .trust-items {
        grid-template-columns: 1fr;
        gap: var(--spacing-5);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-card {
        padding: var(--spacing-6);
    }
    
    .calculator-card {
        padding: var(--spacing-6);
    }
    
    .cta-section {
        padding: var(--spacing-12) var(--spacing-4);
    }
}