@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;700;900&display=swap');

:root {
    --primary-blue: #116eee;
    --primary-blue-hover: #418bf1;
    --primary-blue-active: #0e58be;
    
    --primary-green: #11ee92;
    --primary-green-hover: #88f7c8;
    --primary-green-active: #0ebe75;
    
    --dark-navy: #1e2d40;
    --dark-navy-hover: #4b5766;
    --dark-navy-active: #000000;
    
    --light-bg: #f3f5f8;
    --white: #ffffff;
    --border-color: #dae1ea;
    --text-primary: #252b2f;
    --text-muted: #6d7783;
    
    --shadow-soft: 0 0.375rem 1.4375rem 0.125rem rgba(99, 121, 154, 0.12);
    --shadow-card: 0 0.625rem 2rem rgba(0, 0, 0, 0.05);
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius-lg: 1.875rem;
    --border-radius-md: 1.125rem;
    --border-radius-sm: 0.75rem;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-primary);
    background-color: var(--white);
    line-height: 1.6;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--dark-navy);
    font-weight: 800;
    line-height: 1.3;
}

h1 {
    font-size: 3rem;
    font-weight: 900;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.25rem;
    font-weight: 900;
}

h3 {
    font-size: 1.5rem;
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--primary-blue-active);
}

p {
    font-size: 1.125rem;
    color: var(--text-muted);
}

/* Layout Utilities */
.container {
    max-width: 75rem;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid {
    display: grid;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 1.0625rem;
    font-weight: 700;
    border-radius: 6.25rem;
    border: 0.125rem solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-align: center;
    outline: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-blue-hover);
    border-color: var(--primary-blue-hover);
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(17, 110, 238, 0.2);
}

.btn-primary:active {
    background-color: var(--primary-blue-active);
    border-color: var(--primary-blue-active);
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--primary-green);
    color: var(--dark-navy);
    border-color: var(--primary-green);
}

.btn-secondary:hover {
    background-color: var(--primary-green-hover);
    border-color: var(--primary-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(17, 238, 146, 0.2);
}

.btn-secondary:active {
    background-color: var(--primary-green-active);
    border-color: var(--primary-green-active);
    transform: translateY(0);
}

.btn-outline {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-outline:hover {
    background-color: var(--white);
    color: var(--primary-blue);
    transform: translateY(-2px);
}

.btn-dark {
    background-color: var(--dark-navy);
    color: var(--white);
    border-color: var(--dark-navy);
}

.btn-dark:hover {
    background-color: var(--dark-navy-hover);
    border-color: var(--dark-navy-hover);
    transform: translateY(-2px);
}

/* Header & Navigation */
header {
    background-color: var(--primary-blue);
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 100;
    padding: 1.25rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--primary-green);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    font-size: 1.0625rem;
}

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

.nav-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Hero Section */
.hero {
    background-color: var(--primary-blue);
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="%23ffffff" fill-opacity="0.02"/></svg>');
    color: var(--white);
    padding: 10rem 0 6rem 0;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4rem;
    background-color: var(--white);
    clip-path: ellipse(60% 100% at 50% 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.hero-content h1 span {
    color: var(--primary-green);
}

.hero-content p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 2.5rem;
    font-size: 1.25rem;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 1.25rem 3.125rem rgba(0, 0, 0, 0.15);
    transform: rotate(1deg);
    transition: var(--transition-smooth);
}

.hero-image img:hover {
    transform: rotate(0deg) scale(1.02);
}

/* Badges section */
.badges {
    padding: 3rem 0;
    border-bottom: 1px solid var(--border-color);
}

.badges-flex {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.badge-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-blue);
    line-height: 1;
}

.badge-text {
    font-weight: 700;
    color: var(--dark-navy);
}

/* Focus Section ("Quiero Aprender...") */
.courses-section {
    padding: 5rem 0;
    background-color: var(--light-bg);
}

.section-header {
    text-align: center;
    max-width: 40rem;
    margin: 0 auto 3.5rem auto;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header h2 span {
    color: var(--primary-blue);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
    gap: 2rem;
}

.course-card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow-card);
    transition: var(--transition-smooth);
    border: 0.125rem solid transparent;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.course-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-blue);
    box-shadow: 0 1.25rem 2.5rem rgba(17, 110, 238, 0.08);
}

.course-icon {
    width: 3.5rem;
    height: 3.5rem;
    background-color: rgba(17, 110, 238, 0.1);
    color: var(--primary-blue);
    border-radius: 50%;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.course-card h3 {
    margin-bottom: 1rem;
}

.course-card p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.course-meta {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.course-meta span {
    color: var(--primary-blue);
}

/* Modality Section (Online vs Presencial) */
.modality-section {
    padding: 6rem 0;
}

.modality-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.modality-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.modality-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.modality-item-icon {
    color: var(--primary-green);
    font-size: 1.25rem;
    background-color: var(--dark-navy);
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    flex-shrink: 0;
}

.modality-item-text h4 {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
}

.modality-item-text p {
    font-size: 0.95rem;
}

.modality-visual {
    background-color: var(--light-bg);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.modality-card {
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-card);
    margin-bottom: 1.5rem;
    transition: var(--transition-smooth);
}

.modality-card:hover {
    transform: scale(1.02);
}

.modality-card.active {
    border-left: 5px solid var(--primary-blue);
}

/* About / Teacher Section */
.teacher-section {
    padding: 6rem 0;
    background-color: var(--light-bg);
}

.teacher-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

.teacher-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-card);
}

.teacher-content h2 {
    margin-bottom: 1.5rem;
}

.teacher-content p {
    margin-bottom: 1.5rem;
}

.teacher-credentials {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.credential {
    background-color: var(--white);
    padding: 1.2rem;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 4px 10px rgba(0,0,0,0.02);
    border-left: 4px solid var(--primary-green);
}

.credential h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.credential p {
    font-size: 0.875rem;
}

/* Testimonials Carousel */
.testimonials {
    padding: 6rem 0;
}

.carousel-container {
    position: relative;
    max-width: 50rem;
    margin: 2rem auto;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.testimonial-card {
    min-width: 100%;
    padding: 3rem 2rem;
    background-color: var(--light-bg);
    border-radius: var(--border-radius-lg);
    text-align: center;
    position: relative;
}

.testimonial-quote {
    font-size: 1.35rem;
    font-weight: 500;
    color: var(--dark-navy);
    margin-bottom: 2rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.testimonial-avatar {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background-color: var(--primary-blue);
    color: var(--white);
    font-weight: 700;
    font-size: 1.25rem;
}

.testimonial-name {
    font-weight: 800;
}

.testimonial-level {
    font-size: 0.875rem;
    font-weight: 700;
    background-color: var(--primary-green);
    color: var(--dark-navy);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
}

.carousel-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.carousel-dot {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    background-color: var(--border-color);
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.carousel-dot.active {
    background-color: var(--primary-blue);
    width: 1.5rem;
    border-radius: 0.5rem;
}

/* Call to Action Footer Section */
.cta-banner {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-banner h2 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
}

.cta-banner p {
    color: rgba(255,255,255,0.85);
    margin-bottom: 2.5rem;
    max-width: 35rem;
    margin-left: auto;
    margin-right: auto;
}

/* Interactive Quiz Modal & Flows */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(30, 45, 64, 0.6);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background-color: var(--white);
    width: 100%;
    max-width: 42rem;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 1.5rem 3.5rem rgba(0,0,0,0.2);
    overflow: hidden;
    position: relative;
    animation: slideUp 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

.modal-header {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: var(--white);
}

.close-btn {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.close-btn:hover {
    color: var(--primary-green);
    transform: rotate(90deg);
}

/* Quiz UI elements */
.quiz-body {
    padding: 2.5rem 2rem;
    min-height: 25rem;
    display: flex;
    flex-direction: column;
}

.progress-bar-container {
    width: 100%;
    height: 0.5rem;
    background-color: var(--light-bg);
    border-radius: 1rem;
    margin-bottom: 2rem;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background-color: var(--primary-green);
    transition: width 0.3s ease-in-out;
}

.question-text {
    font-size: 1.35rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--dark-navy);
}

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

.option-btn {
    background-color: var(--white);
    border: 0.125rem solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1.1rem 1.5rem;
    text-align: left;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.option-btn:hover {
    border-color: var(--primary-blue);
    background-color: rgba(17, 110, 238, 0.02);
}

.option-btn.selected {
    border-color: var(--primary-blue);
    background-color: rgba(17, 110, 238, 0.08);
    box-shadow: 0 4px 12px rgba(17, 110, 238, 0.15);
}

.option-badge {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    font-size: 0.875rem;
    font-weight: 700;
}

.option-btn:hover .option-badge {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.option-btn.selected .option-badge {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--white);
}

.quiz-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

/* User Info Form */
.user-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dark-navy);
}

.form-control {
    padding: 0.875rem 1.25rem;
    border-radius: var(--border-radius-sm);
    border: 0.125rem solid var(--border-color);
    font-size: 1rem;
    outline: none;
    font-family: inherit;
    transition: var(--transition-smooth);
}

.form-control:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(17, 110, 238, 0.15);
}

/* Result UI screen */
.result-container {
    text-align: center;
    padding: 1.5rem 0;
}

.result-badge {
    width: 7rem;
    height: 7rem;
    background: radial-gradient(circle, var(--primary-green) 0%, var(--primary-green-active) 100%);
    color: var(--dark-navy);
    border-radius: 50%;
    font-size: 3rem;
    font-weight: 900;
    margin: 0 auto 1.5rem auto;
    box-shadow: 0 10px 25px rgba(17, 238, 146, 0.3);
}

.result-score {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.result-price-card {
    background-color: var(--light-bg);
    border-radius: var(--border-radius-md);
    padding: 1.5rem 2rem;
    margin: 1.5rem 0 2rem 0;
    border: 2px dashed var(--border-color);
}

.price-tag {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-blue);
    margin: 0.5rem 0;
}

/* Admin Dashboard Styling */
.admin-body {
    background-color: var(--light-bg);
    padding-top: 6rem;
    min-height: 100vh;
}

.admin-card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-card);
    padding: 2.5rem;
    margin-bottom: 2.5rem;
}

.admin-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

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

.question-item-card {
    border: 0.125rem solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    background-color: var(--white);
    position: relative;
    transition: var(--transition-smooth);
}

.question-item-card:hover {
    border-color: var(--primary-blue);
}

.question-item-card .actions {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    display: flex;
    gap: 0.5rem;
}

.action-btn {
    border: none;
    background: none;
    cursor: pointer;
    font-size: 1.15rem;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition-smooth);
    color: var(--text-muted);
}

.action-btn:hover {
    background-color: var(--light-bg);
}

.action-btn.delete:hover {
    color: red;
    background-color: rgba(255, 0, 0, 0.05);
}

.admin-options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.admin-option-pill {
    background-color: var(--light-bg);
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-option-pill.correct {
    background-color: rgba(17, 238, 146, 0.15);
    border: 1.5px solid var(--primary-green-active);
    color: #0b8e57;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.admin-tabs {
    display: flex;
    gap: 1rem;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 2rem;
}

.admin-tab {
    padding: 0.75rem 1.5rem;
    font-weight: 700;
    font-size: 1.0625rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    border-bottom: 3px solid transparent;
    transition: var(--transition-smooth);
    outline: none;
}

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

/* Submissions Table */
.admin-table-container {
    overflow-x: auto;
    border-radius: var(--border-radius-sm);
    border: 1.5px solid var(--border-color);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
}

.admin-table th, .admin-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background-color: var(--light-bg);
    color: var(--dark-navy);
    font-weight: 700;
}

.admin-table tr:hover {
    background-color: rgba(243, 245, 248, 0.4);
}

/* Footer styling */
footer {
    background-color: var(--dark-navy);
    color: var(--white);
    padding: 4rem 0 2rem 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--primary-green);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.25rem;
}

.social-links a:hover {
    color: var(--primary-green);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Float Button WhatsApp */
.btn-whatsapp {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: #25d366;
    color: var(--white);
    width: 3.75rem;
    height: 3.75rem;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    z-index: 999;
    font-size: 1.8rem;
    transition: var(--transition-smooth);
    border: none;
    cursor: pointer;
}

.btn-whatsapp:hover {
    transform: scale(1.1);
    background-color: #128c7e;
}

/* Mobile Responsiveness */
@media (max-width: 50rem) {
    h1 {
        font-size: 2.25rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero {
        padding: 8rem 0 4rem 0;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .modality-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .teacher-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .nav-links, .nav-buttons .btn-outline {
        display: none;
    }
    
    .admin-options-grid {
        grid-template-columns: 1fr;
    }
}