/* ========================================
   RESET & BASE STYLES
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #dc2626;
    --color-primary-dark: #b91c1c;
    --color-primary-light: #ef4444;
    --color-secondary: #6b7280;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-dark: #111827;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    --color-white: #ffffff;
    --color-black: #000000;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
}

html {
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-white);
    color: var(--color-gray-900);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

/* ========================================
   UTILITY CLASSES
======================================== */
.container {
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
    padding: 0 1rem;
}

.container-narrow {
    max-width: 1024px;
    width: 100%;
    margin: 0 auto;
    padding: 0 1rem;
}

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

.text-primary {
    color: var(--color-primary);
}

.mb-12 {
    margin-bottom: 3rem;
}

/* Responsive visibility classes */
.desktop-only {
    display: none !important;
}

.mobile-only {
    display: flex !important;
}

@media (min-width: 768px) {
    .desktop-only {
        display: flex !important;
    }

    .mobile-only {
        display: none !important;
    }
}

/* Icon Sizes */
.icon-xs {
    width: 0.75rem;
    height: 0.75rem;
}

.icon-sm {
    width: 1rem;
    height: 1rem;
}

.icon-md {
    width: 1.25rem;
    height: 1.25rem;
}

.icon-lg {
    width: 1.5rem;
    height: 1.5rem;
}

.icon-xl {
    width: 2rem;
    height: 2rem;
}

/* ========================================
   NAVBAR
======================================== */
#navbar {
    background-color: var(--color-black);
    color: var(--color-white);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-md);
    border-bottom: 2px solid var(--color-primary);
}

.navbar-container {
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 64px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--color-white);
    transition: opacity 0.3s;
}

.navbar-brand:hover {
    opacity: 0.8;
}

.navbar-brand i {
    color: var(--color-primary);
}

.navbar-title {
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

@media (min-width: 768px) {
    .navbar-title {
        font-size: 1.25rem;
    }
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link,
.nav-link-mobile {
    color: var(--color-gray-300);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 0.875rem;
}

.nav-link:hover,
.nav-link-mobile:hover {
    color: var(--color-white);
}

.nav-link.active {
    color: var(--color-primary);
}

/* ========================================
   HAMBURGER MENU (MOBILE)
======================================== */
.hamburger-btn {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 100;
}

.hamburger-btn span {
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-menu {
    position: fixed;
    top: 64px;
    right: -100%;
    width: 250px;
    height: calc(100vh - 64px);
    background-color: var(--color-black);
    border-left: 2px solid var(--color-primary);
    display: flex;
    flex-direction: column;
    padding: 2rem 0;
    gap: 0;
    transition: right 0.3s ease;
    z-index: 99;
    box-shadow: -4px 0 10px rgba(0, 0, 0, 0.3);
}

.mobile-menu.open {
    right: 0;
}

.mobile-menu-link {
    color: var(--color-gray-300);
    text-decoration: none;
    padding: 1rem 2rem;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s;
    border-left: 4px solid transparent;
}

.mobile-menu-link:hover,
.mobile-menu-link.active {
    background-color: rgba(220, 38, 38, 0.1);
    color: var(--color-white);
    border-left-color: var(--color-primary);
}

@media (min-width: 768px) {
    .mobile-menu {
        display: none;
    }
}


/* ========================================
   BUTTONS
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 700;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: scale(1.05);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-300);
}

.btn-secondary:hover {
    background-color: var(--color-white);
}

.btn-white {
    background-color: rgba(255, 255, 255, 0.95);
    color: var(--color-black);
}

.btn-white:hover {
    background-color: var(--color-gray-100);
    transform: scale(1.05);
}

.btn-success {
    background-color: var(--color-success);
    color: var(--color-white);
}

.btn-success:hover {
    background-color: #059669;
}

.btn:disabled {
    background-color: var(--color-gray-200);
    color: var(--color-gray-400);
    cursor: not-allowed;
    transform: none;
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: none;
    color: var(--color-gray-500);
    font-size: 0.875rem;
    cursor: pointer;
    transition: color 0.3s;
}

.btn-logout:hover {
    color: var(--color-primary);
}

/* ========================================
   PAGE MANAGEMENT
======================================== */
.page {
    display: none;
}

.page.active {
    display: block;
}

/* ========================================
   HERO SECTION
======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

#hero-img-1 {
    background-image: url('https://images.unsplash.com/photo-1464822759023-fed622ff2c3b?q=80&w=2070&auto=format&fit=crop');
}

#hero-img-2 {
    background-image: url('https://images.unsplash.com/photo-1473448912268-2022ce9509d8?q=80&w=2041&auto=format&fit=crop');
}

.hero-bg-image.active {
    opacity: 0.5;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(17, 24, 39, 0.4), rgba(17, 24, 39, 0.2), rgba(17, 24, 39, 0.9));
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 1280px;
    padding: 3rem 1rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
}

@media (min-width: 768px) {
    .hero-content {
        padding: 5rem 1rem 3rem;
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(220, 38, 38, 0.9);
    backdrop-filter: blur(4px);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.375rem 1rem;
    border-radius: 9999px;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.6s ease-out;
}

.hero-title {
    font-size: 1.5rem;
    font-weight: 900;
    line-height: 1.2;
    color: var(--color-white);
    margin-bottom: 1.5rem;
    max-width: 1024px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
    padding: 0 0.5rem;
}

@media (min-width: 640px) {
    .hero-title {
        font-size: 2.5rem;
    }
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.75rem;
        padding: 0;
    }
}

.hero-subtitle {
    display: block;
    margin-top: 0.5rem;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-gray-100);
}

@media (min-width: 640px) {
    .hero-subtitle {
        font-size: 1.875rem;
    }
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 3rem;
    }
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-gray-200);
    margin-bottom: 2.5rem;
    max-width: 672px;
    font-weight: 500;
    padding: 0 0.5rem;
}

@media (min-width: 768px) {
    .hero-description {
        font-size: 1.5rem;
    }
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
        width: auto;
    }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    color: rgba(255, 255, 255, 0.5);
    animation: bounce 2s infinite;
    display: none;
}

@media (min-width: 768px) {
    .scroll-indicator {
        display: block;
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   SECTIONS
======================================== */
.section {
    padding: 3rem 0;
}

@media (min-width: 768px) {
    .section {
        padding: 5rem 0;
    }
}

.section-white {
    background-color: var(--color-white);
}

.section-dark {
    background-color: var(--color-black);
    color: var(--color-white);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.25rem;
    }
}

.section-title-light {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 2rem;
    text-align: center;
}

@media (min-width: 768px) {
    .section-title-light {
        font-size: 2.5rem;
    }
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    max-width: 672px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .section-description {
        font-size: 1.25rem;
    }
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background-color: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-100);
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.feature-card:hover {
    border-color: rgba(220, 38, 38, 0.2);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.feature-description {
    color: var(--color-gray-600);
}

/* ========================================
   PRICING SECTION
======================================== */
.pricing-card {
    background-color: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-2xl);
    position: relative;
    overflow: hidden;
    border: 4px solid rgba(220, 38, 38, 0.2);
}

@media (min-width: 768px) {
    .pricing-card {
        padding: 3rem;
    }
}

.pricing-ribbon {
    position: absolute;
    top: 1.5rem;
    right: -3rem;
    width: 12rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 0.875rem;
    font-weight: 700;
    padding: 0.5rem;
    transform: rotate(45deg);
    text-align: center;
    box-shadow: var(--shadow-lg);
    z-index: 10;
}

.pricing-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

@media (min-width: 768px) {
    .pricing-content {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.pricing-features {
    flex: 1;
}

.pricing-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.pricing-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.pricing-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
}

@media (min-width: 768px) {
    .pricing-item {
        font-size: 1rem;
    }
}

.check-icon {
    background-color: #d1fae5;
    padding: 0.25rem;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.check-icon i {
    color: var(--color-success);
}

.pricing-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    background-color: var(--color-white);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-gray-100);
}

@media (min-width: 768px) {
    .pricing-box {
        width: auto;
    }
}

.price-old {
    color: var(--color-gray-400);
    text-decoration: line-through;
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
}

.price-current {
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.price-subtitle {
    font-size: 0.75rem;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.pricing-guarantee {
    margin-top: 2rem;
    text-align: center;
    color: var(--color-gray-500);
    font-size: 0.875rem;
    max-width: 448px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   EXAM SCREENS
======================================== */
.exam-screen {
    display: none;
    min-height: calc(100vh - 64px);
}

.exam-screen.active {
    display: block;
}

.exam-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    min-height: calc(100vh - 64px);
}

.exam-welcome-card {
    background-color: var(--color-white);
    max-width: 672px;
    width: 100%;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: 2rem;
    border-top: 4px solid var(--color-primary);
}

.exam-welcome-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.exam-welcome-subtitle {
    color: var(--color-gray-600);
    margin-bottom: 2rem;
}

.exam-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.exam-stat {
    background-color: var(--color-white);
    padding: 1rem;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.25rem;
}

.stat-value-primary {
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.exam-alert {
    background-color: #fef3c7;
    border-left: 4px solid #f59e0b;
    padding: 1rem;
    margin-bottom: 2rem;
    border-radius: var(--radius-md);
    display: flex;
    gap: 0.75rem;
}

.exam-alert i {
    color: #f59e0b;
    flex-shrink: 0;
}

.exam-alert p {
    font-size: 0.875rem;
    color: #92400e;
}

/* Exam Topbar */
.exam-topbar {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    padding: 1rem;
    position: sticky;
    top: 64px;
    z-index: 40;
}

.exam-topbar-content {
    max-width: 1024px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.exam-timer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-gray-700);
    font-weight: 700;
    font-size: 1.25rem;
    font-family: monospace;
}

.exam-timer.warning {
    color: var(--color-primary);
}

.exam-timer.warning i {
    animation: pulse 1s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.exam-progress-text {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-500);
}

.exam-progress-bar {
    width: 100%;
    background-color: var(--color-gray-200);
    height: 0.5rem;
    margin-top: 1rem;
    max-width: 1024px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 9999px;
    overflow: hidden;
}

.exam-progress-fill {
    background-color: var(--color-primary);
    height: 100%;
    transition: width 0.3s;
}

/* Exam Question */
.exam-question-container {
    flex: 1;
    max-width: 1024px;
    width: 100%;
    margin: 0 auto;
    padding: 1rem;
}

@media (min-width: 768px) {
    .exam-question-container {
        padding: 2rem;
    }
}

.exam-question-card {
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .exam-question-card {
        padding: 2.5rem;
    }
}

.question-topic {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.question-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 2rem;
    line-height: 1.5;
}

@media (min-width: 768px) {
    .question-text {
        font-size: 1.5rem;
    }
}

.question-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.question-option {
    width: 100%;
    text-align: left;
    padding: 1rem;
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-gray-200);
    background-color: transparent;
    color: var(--color-gray-700);
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.question-option:hover {
    border-color: var(--color-gray-300);
    background-color: var(--color-white);
}

.question-option.selected {
    border-color: var(--color-primary);
    background-color: #fef2f2;
    color: #7f1d1d;
    font-weight: 600;
}

.option-circle {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 9999px;
    border: 2px solid var(--color-gray-400);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.question-option.selected .option-circle {
    border-color: var(--color-primary);
    background-color: var(--color-primary);
    color: var(--color-white);
}

.exam-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
}

/* Exam Results */
.exam-results-card {
    background-color: var(--color-white);
    max-width: 768px;
    width: 100%;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
}

.results-header {
    padding: 2rem;
    text-align: center;
}

.results-passed {
    background-color: var(--color-success);
    color: var(--color-white);
}

.results-failed {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.results-status {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.results-score {
    font-size: 1.25rem;
    opacity: 0.9;
}

.results-body {
    padding: 2rem;
}

.results-upsell {
    background-color: var(--color-gray-100);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    margin-bottom: 2rem;
    text-align: center;
}

.upsell-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.upsell-description {
    color: var(--color-gray-600);
    margin-bottom: 1.5rem;
}

.results-review {
    margin-top: 2rem;
}

.results-review-title {
    font-size: 1.25rem;
    font-weight: 700;
    border-bottom: 2px solid var(--color-gray-200);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

.results-questions-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.result-question-card {
    padding: 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
}

.result-question-card.correct {
    border-color: #d1fae5;
    background-color: #f0fdf4;
}

.result-question-card.incorrect {
    border-color: #fecaca;
    background-color: #fef2f2;
}

/* ========================================
   MÓDULOS PAGE
======================================== */
.modulos-header {
    background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-gray-800) 100%);
    color: var(--color-white);
    padding: 4rem 0 3rem;
    text-align: center;
}

.page-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .page-title {
        font-size: 3rem;
    }
}

.page-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-300);
    max-width: 672px;
    margin: 0 auto;
}

.modulos-content {
    padding: 3rem 1rem;
}

.modulos-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
}

@media (min-width: 768px) {
    .modulos-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.modulo-card {
    background-color: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-gray-200);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.modulo-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.modulo-card-premium {
    border-color: var(--color-primary);
}

.modulo-card-locked {
    opacity: 0.9;
    background-color: var(--color-white);
}

.modulo-ribbon {
    position: absolute;
    top: 1rem;
    right: -2.5rem;
    width: 10rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem;
    transform: rotate(45deg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.modulo-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.modulo-icon {
    background-color: #fef2f2;
    color: var(--color-primary);
    padding: 0.75rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modulo-icon-premium {
    background-color: #fef2f2;
    color: var(--color-primary);
}

.modulo-icon-locked {
    background-color: var(--color-gray-100);
    color: var(--color-gray-400);
}

.modulo-badge-free {
    background-color: var(--color-success);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
}

.modulo-badge-locked {
    background-color: var(--color-gray-200);
    color: var(--color-gray-600);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.modulo-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-gray-900);
}

.modulo-description {
    color: var(--color-gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.modulo-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.modulo-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-gray-700);
}

.modulo-list i {
    color: var(--color-success);
}

.modulo-price {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.price-line-through {
    color: var(--color-gray-400);
    text-decoration: line-through;
    font-size: 1.125rem;
}

.price-highlight {
    color: var(--color-primary);
    font-size: 2rem;
    font-weight: 900;
}

.modulo-included {
    background-color: #d1fae5;
    color: #065f46;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
}

.modulos-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: 3rem 2rem;
    border-radius: var(--radius-2xl);
    text-align: center;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

@media (min-width: 640px) {
    .cta-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

/* ========================================
   DASHBOARD
======================================== */
.dashboard-header {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    padding: 2rem 0;
}

.dashboard-header-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .dashboard-header-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.dashboard-subtitle {
    margin-top: 0.5rem;
    color: var(--color-gray-600);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-left: 0.5rem;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.dashboard-content {
    padding: 3rem 1rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 2fr 1fr;
    }
}

.dashboard-main {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.module-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-xl);
    transition: all 0.3s;
    overflow: hidden;
}

.module-card:hover {
    box-shadow: var(--shadow-md);
}

.module-header {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
}

.module-header:hover {
    background-color: var(--color-white);
}

.module-icon {
    background-color: #fef2f2;
    padding: 0.75rem;
    border-radius: var(--radius-lg);
    color: var(--color-primary);
}

.module-info {
    flex: 1;
}

.module-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-gray-900);
}

.module-description {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    margin-top: 0.25rem;
}

.module-toggle {
    color: var(--color-primary);
    font-weight: 500;
    font-size: 0.875rem;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: color 0.3s;
}

.module-toggle:hover {
    color: var(--color-primary-dark);
}

.dashboard-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-card {
    background-color: var(--color-white);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    position: sticky;
    top: 96px;
}

.sidebar-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.progress-section {
    margin-bottom: 1.5rem;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.progress-label {
    color: var(--color-gray-600);
}

.progress-value {
    font-weight: 700;
    color: var(--color-gray-900);
}

.progress-bar {
    width: 100%;
    background-color: var(--color-gray-200);
    border-radius: 9999px;
    height: 0.5rem;
    overflow: hidden;
}

.progress-fill {
    background-color: var(--color-primary);
    height: 100%;
    transition: width 0.3s;
}

.status-box {
    padding: 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid;
    margin-bottom: 1.5rem;
}

.status-success {
    background-color: #f0fdf4;
    border-color: #d1fae5;
}

.status-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: #065f46;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-title i {
    color: var(--color-success);
}

.status-description {
    font-size: 0.875rem;
    color: #047857;
}

.tools-section {
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-gray-100);
}

.tools-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.75rem;
}

.tools-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.tool-item {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tool-active {
    color: var(--color-success);
    font-weight: 600;
}

/* ========================================
   FOOTER
======================================== */
#footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-400);
    padding: 3rem 0;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
}

.footer-title {
    font-weight: 700;
    color: var(--color-white);
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.footer-description {
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.footer-copyright {
    font-size: 0.75rem;
    color: var(--color-gray-600);
}

/* ========================================
   RESPONSIVE UTILITIES
======================================== */
@media (max-width: 767px) {
    .section {
        padding: 3rem 0;
    }

    .hero {
        min-height: 100vh;
    }

    .module-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ========================================
   CHECKOUT PAGE
======================================== */
.checkout-page {
    min-height: calc(100vh - 64px);
    background: linear-gradient(to bottom, rgba(17, 24, 39, 0.9), rgba(17, 24, 39, 0.95)),
        url('https://images.unsplash.com/photo-1464822759023-fed622ff2c3b?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 3rem 1rem;
}

.checkout-card {
    background-color: var(--color-white);
    max-width: 600px;
    margin: 0 auto;
    border-radius: var(--radius-2xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    border-top: 4px solid var(--color-primary);
}

.checkout-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: 2rem;
    text-align: center;
}

.checkout-icon {
    width: 3rem;
    height: 3rem;
    margin-bottom: 1rem;
}

.checkout-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

@media (min-width: 768px) {
    .checkout-title {
        font-size: 1.875rem;
    }
}

.product-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
}

.product-info h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.25rem;
}

.product-info p {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.product-price {
    font-size: 2rem;
    font-weight: 900;
    color: var(--color-primary);
}

.checkout-alert {
    margin: 1.5rem 2rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border-left: 4px solid #dc2626;
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
    border-left: 4px solid #f59e0b;
}

.checkout-form {
    padding: 2rem;
}

.form-section {
    margin-bottom: 2rem;
}

.form-section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.form-section-header i {
    color: var(--color-primary);
}

.form-section-header h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-gray-900);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-gray-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color 0.3s;
    font-family: var(--font-sans);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.payment-info-box {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
}

.payment-info-box p {
    color: var(--color-gray-600);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.payment-methods {
    display: flex;
    justify-content: center;
    gap: 1rem;
    align-items: center;
}

.checkout-secure {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
    font-size: 0.75rem;
    color: var(--color-gray-500);
    text-align: center;
}

.checkout-secure i {
    color: var(--color-success);
}

/* Responsive */
@media (max-width: 768px) {
    .checkout-page {
        padding: 1rem;
    }

    .checkout-form {
        padding: 1.5rem;
    }

    .product-summary {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}


/* ========================================
   AUTH PAGE (Login/Register)
======================================== */
.auth-page {
    min-height: calc(100vh - 64px);
    background: linear-gradient(to bottom, rgba(17, 24, 39, 0.9), rgba(17, 24, 39, 0.95)),
        url('https://images.unsplash.com/photo-1473448912268-2022ce9509d8?q=80&w=2041&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 3rem 1rem;
}

.auth-card {
    background-color: var(--color-white);
    max-width: 500px;
    margin: 0 auto;
    border-radius: var(--radius-2xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    border-top: 4px solid var(--color-primary);
}

.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-gray-200);
}

.auth-tab {
    flex: 1;
    padding: 1.25rem;
    background: none;
    border: none;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-600);
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-bottom: 3px solid transparent;
}

.auth-tab:hover {
    background-color: var(--color-white);
}

.auth-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.auth-alert {
    margin: 1.5rem 2rem 0;
    padding: 1rem;
    border-radius: var(--color-gray-md);
    font-size: 0.875rem;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--color-success);
}

.auth-form-container {
    display: none;
    padding: 2rem;
}

.auth-form-container.active {
    display: block;
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    color: var(--color-gray-600);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.auth-note {
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--color-gray-500);
    text-align: center;
}

.auth-footer {
    background-color: var(--color-white);
    padding: 1.5rem 2rem;
    text-align: center;
    border-top: 1px solid var(--color-gray-200);
}

.auth-footer p {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .auth-page {
        padding: 1rem;
    }

    .auth-form-container {
        padding: 1.5rem;
    }
}

/* ==========================================
   MÓDULOS DESPLEGABLES (ACORDEÓN)
   ========================================== */

.accordion-module {
    transition: all 0.3s ease;
}

.module-header-accordion {
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
}

.module-header-accordion:hover {
    background-color: rgba(220, 38, 38, 0.05);
}

.accordion-chevron {
    transition: transform 0.3s ease;
    color: var(--color-primary);
}

.accordion-module.accordion-open .accordion-chevron {
    transform: rotate(180deg);
}

.module-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.module-accordion-content.open {
    max-height: 1000px;
}

.submodule-list {
    padding: 1rem;
    background-color: #f9fafb;
    border-top: 1px solid #e5e7eb;
}

.submodule-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.submodule-item:hover {
    border-color: var(--color-primary);
    transform: translateX(4px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.submodule-item:last-child {
    margin-bottom: 0;
}

.submodule-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.submodule-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #fee2e2;
    color: var(--color-primary);
    border-radius: 0.375rem;
}

.submodule-title {
    font-weight: 600;
    color: #1f2937;
    font-size: 0.9375rem;
}

.submodule-action {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.875rem;
}