/* === Reset & Base === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --yellow: #F5C800;
    --yellow-light: #FFD93D;
    --yellow-dim: rgba(245, 200, 0, 0.1);
    --dark: #0D0D0D;
    --dark-2: #141414;
    --dark-3: #1A1A1A;
    --dark-4: #222222;
    --gray: #888;
    --light: #F5F5F5;
    --white: #FFFFFF;
    --radius: 12px;
    --radius-lg: 20px;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Be Vietnam Pro', sans-serif;
    background: var(--dark);
    color: var(--light);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s;
}

img {
    max-width: 100%;
    height: auto;
}

.highlight {
    color: var(--yellow);
}

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--yellow);
    color: var(--dark);
    border-color: var(--yellow);
}

.btn-primary:hover {
    background: var(--yellow-light);
    border-color: var(--yellow-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 200, 0, 0.25);
}

.btn-outline {
    background: transparent;
    color: var(--light);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    border-color: var(--yellow);
    color: var(--yellow);
    transform: translateY(-2px);
}

/* === Header === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s;
    background: rgba(13, 13, 13, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.header.scrolled {
    padding: 10px 0;
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

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

.logo img {
    height: 52px;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray);
    position: relative;
    padding: 4px 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--yellow);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--yellow);
    transition: width 0.3s;
}

.nav-link:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--light);
    transition: all 0.3s;
}

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

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* === Hero === */
.hero {
    padding: 160px 0 100px;
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 680px;
    position: relative;
    z-index: 2;
}

.hero-tag {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid rgba(245, 200, 0, 0.3);
    border-radius: 50px;
    font-size: 13px;
    color: var(--yellow);
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: clamp(36px, 6vw, 60px);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero-desc {
    font-size: 17px;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-bg-accent {
    position: absolute;
    top: 50%;
    right: -5%;
    transform: translateY(-50%);
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(245, 200, 0, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

/* === Section Common === */
.section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--yellow);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 48px;
}

/* === About === */
.about {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-text h2 {
    font-size: clamp(26px, 3.5vw, 36px);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 24px;
}

.about-text p {
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.stat-card {
    background: var(--dark-3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
    padding: 24px;
    transition: all 0.3s;
}

.stat-card:hover {
    border-color: rgba(245, 200, 0, 0.2);
    transform: translateY(-4px);
}

.stat-icon {
    font-size: 28px;
    display: block;
    margin-bottom: 12px;
}

.stat-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.stat-card p {
    font-size: 13px;
    color: var(--gray);
}

/* === Services === */
.services {
    padding: 100px 0;
    background: var(--dark-2);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--dark-3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    border-color: rgba(245, 200, 0, 0.15);
    transform: translateY(-4px);
}

.service-num {
    font-size: 48px;
    font-weight: 700;
    color: rgba(245, 200, 0, 0.1);
    margin-bottom: 16px;
    line-height: 1;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.service-card > p {
    color: var(--gray);
    font-size: 15px;
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.service-list li {
    font-size: 14px;
    color: var(--gray);
    padding-left: 20px;
    position: relative;
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--yellow);
}

/* === Process === */
.process {
    padding: 100px 0;
}

.process-grid {
    display: flex;
    align-items: flex-start;
    gap: 0;
    justify-content: center;
}

.process-step {
    text-align: center;
    flex: 1;
    max-width: 220px;
    padding: 0 12px;
}

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--yellow);
    color: var(--dark);
    font-size: 22px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.process-step h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
}

.process-step p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

.process-connector {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--yellow), rgba(245, 200, 0, 0.2));
    margin-top: 28px;
    flex-shrink: 0;
}

/* === CTA === */
.cta {
    padding: 60px 0;
}

.cta-box {
    background: linear-gradient(135deg, var(--dark-3) 0%, var(--dark-4) 100%);
    border: 1px solid rgba(245, 200, 0, 0.15);
    border-radius: var(--radius-lg);
    padding: 64px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(245, 200, 0, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.cta-box h2 {
    font-size: clamp(24px, 3.5vw, 34px);
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.4;
    position: relative;
}

.cta-box p {
    color: var(--gray);
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
}

/* === Pricing === */
.pricing {
    padding: 100px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: stretch;
}

.pricing-card {
    background: var(--dark-3);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    transition: all 0.3s;
    position: relative;
}

.pricing-card:hover {
    border-color: rgba(245, 200, 0, 0.2);
    transform: translateY(-4px);
}

.pricing-card.popular {
    border-color: var(--yellow);
    border-width: 2px;
    box-shadow: 0 8px 40px rgba(245, 200, 0, 0.1);
}

.popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--yellow);
    color: var(--dark);
    font-size: 12px;
    font-weight: 700;
    padding: 5px 20px;
    border-radius: 50px;
    white-space: nowrap;
}

.pricing-tag {
    font-size: 12px;
    font-weight: 600;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.pricing-name {
    font-size: 28px;
    font-weight: 700;
    margin: 8px 0;
}

.pricing-header .pricing-desc {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
    margin-bottom: 20px;
}

.pricing-price {
    margin-bottom: 4px;
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.price-amount {
    font-size: 32px;
    font-weight: 700;
    color: var(--yellow);
}

.price-unit {
    font-size: 15px;
    color: var(--gray);
}

.pricing-note {
    font-size: 13px;
    color: var(--gray);
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.pricing-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
    flex-grow: 1;
}

.pricing-features li {
    font-size: 14px;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.pricing-features li .check {
    color: #4CAF50;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 1px;
}

.pricing-features li .cross {
    color: #555;
    flex-shrink: 0;
    margin-top: 1px;
}

.pricing-features li.excluded {
    color: #555;
}

.pricing-btn {
    width: 100%;
    text-align: center;
    margin-top: auto;
}

/* === Quote Form === */
.quote-form-section {
    padding: 100px 0;
    background: var(--dark-2);
}

.form-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: start;
}

.form-intro h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.form-intro p {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 32px;
}

.form-trust {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.trust-item {
    font-size: 15px;
    color: var(--light);
    display: flex;
    align-items: center;
    gap: 10px;
}

.trust-item span {
    color: #4CAF50;
    font-weight: 700;
    font-size: 16px;
}

.contact-form {
    background: var(--dark-3);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--light);
}

.required {
    color: var(--yellow);
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--dark-4);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    color: var(--light);
    font-family: inherit;
    font-size: 15px;
    transition: border-color 0.3s;
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--yellow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #555;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.checkbox-grid,
.radio-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.checkbox-label,
.radio-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--gray);
    cursor: pointer;
    padding: 10px 14px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.2s;
}

.checkbox-label:hover,
.radio-label:hover {
    border-color: rgba(245, 200, 0, 0.3);
    color: var(--light);
}

.checkbox-label input,
.radio-label input {
    display: none;
}

.checkbox-custom,
.radio-custom {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    flex-shrink: 0;
    transition: all 0.2s;
    position: relative;
}

.radio-custom {
    border-radius: 50%;
}

.checkbox-label input:checked ~ .checkbox-custom,
.radio-label input:checked ~ .radio-custom {
    background: var(--yellow);
    border-color: var(--yellow);
}

.checkbox-label input:checked ~ .checkbox-custom::after {
    content: '\\2713';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    color: var(--dark);
    font-weight: 700;
}

.radio-label input:checked ~ .radio-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--dark);
}

.checkbox-label:has(input:checked),
.radio-label:has(input:checked) {
    border-color: var(--yellow);
    color: var(--light);
    background: rgba(245, 200, 0, 0.05);
}

.btn-submit {
    width: 100%;
    padding: 16px;
    font-size: 16px;
    border: none;
    cursor: pointer;
}

.form-success {
    display: none;
    text-align: center;
    padding: 16px;
    margin-top: 16px;
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid rgba(76, 175, 80, 0.3);
    border-radius: var(--radius);
    color: #4CAF50;
    font-weight: 500;
}

.form-success.show {
    display: block;
}

.form-error {
    display: none;
    text-align: center;
    padding: 16px;
    margin-top: 16px;
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid rgba(244, 67, 54, 0.3);
    border-radius: var(--radius);
    color: #F44336;
    font-weight: 500;
}

.form-error.show {
    display: block;
}

.form-error a {
    color: var(--yellow);
    font-weight: 700;
    text-decoration: underline;
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* === Contact === */
.contact {
    padding: 100px 0;
    background: var(--dark-2);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 24px;
    width: 48px;
    height: 48px;
    background: var(--yellow-dim);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--yellow);
}

.contact-item a {
    font-size: 18px;
    font-weight: 500;
}

.contact-item a:hover {
    color: var(--yellow);
}

.contact-item p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.6;
}

.contact-map {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* === Footer === */
.footer {
    padding: 48px 0 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.footer-logo {
    height: 32px;
    margin-bottom: 8px;
}

.footer-brand p {
    font-size: 13px;
    color: var(--gray);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 14px;
    color: var(--gray);
}

.footer-links a:hover {
    color: var(--yellow);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--gray);
}

/* === Zalo Float === */
.zalo-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: #0068FF;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0, 104, 255, 0.4);
    z-index: 999;
    transition: all 0.3s;
    animation: pulse-zalo 2s infinite;
}

.zalo-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(0, 104, 255, 0.5);
}

@keyframes pulse-zalo {
    0%, 100% { box-shadow: 0 4px 16px rgba(0, 104, 255, 0.4); }
    50% { box-shadow: 0 4px 24px rgba(0, 104, 255, 0.6), 0 0 0 8px rgba(0, 104, 255, 0.1); }
}

/* === Animations === */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === Learn Page === */
.learn-hero {
    padding: 140px 0 60px;
    text-align: center;
}

.learn-hero-title {
    font-size: clamp(28px, 5vw, 48px);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.learn-hero-desc {
    font-size: 17px;
    color: var(--gray);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.7;
}

.learn-layout {
    display: flex;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px 80px;
    gap: 48px;
}

.learn-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
    min-width: 240px;
    max-width: 260px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: var(--dark-2);
    border-radius: var(--radius);
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-link {
    color: var(--gray);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    padding: 10px 14px;
    border-radius: 8px;
    transition: all 0.2s;
    white-space: nowrap;
}

.sidebar-link:hover {
    color: var(--white);
    background: var(--dark-3);
}

.sidebar-link.active {
    color: var(--yellow);
    background: var(--yellow-dim);
}

.learn-content {
    flex: 1;
    min-width: 0;
}

.learn-category {
    margin-bottom: 72px;
    scroll-margin-top: 100px;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.category-icon {
    font-size: 40px;
    flex-shrink: 0;
}

.category-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
}

.category-desc {
    font-size: 14px;
    color: var(--gray);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.metric-card {
    background: var(--dark-2);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
    padding: 28px;
    transition: all 0.3s;
}

.metric-card:hover {
    border-color: rgba(245, 200, 0, 0.2);
    transform: translateY(-3px);
}

.metric-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--yellow);
    margin-bottom: 4px;
}

.metric-vn {
    font-size: 13px;
    color: var(--gray);
    margin-bottom: 12px;
    font-weight: 500;
}

.metric-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 12px;
}

.metric-formula {
    background: var(--dark-3);
    border-left: 3px solid var(--yellow);
    padding: 10px 14px;
    font-size: 13px;
    color: var(--yellow-light);
    font-family: 'Be Vietnam Pro', monospace;
    border-radius: 0 8px 8px 0;
    margin-bottom: 12px;
    line-height: 1.5;
}

.metric-why {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

.metric-why strong {
    color: rgba(255, 255, 255, 0.85);
}

.learn-cta {
    padding: 0 24px 80px;
    max-width: 1280px;
    margin: 0 auto;
}

/* === Responsive === */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--dark);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 32px;
        z-index: 999;
    }

    .nav.open {
        display: flex;
    }

    .nav-link {
        font-size: 20px;
    }

    .menu-toggle {
        display: flex;
        z-index: 1000;
    }

    .hero {
        padding: 130px 0 60px;
        min-height: auto;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-desc {
        font-size: 15px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card {
        padding: 28px;
    }

    .process-grid {
        flex-direction: column;
        align-items: center;
        gap: 24px;
    }

    .process-connector {
        width: 2px;
        height: 30px;
        background: linear-gradient(180deg, var(--yellow), rgba(245, 200, 0, 0.2));
        margin: 0;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }

    .pricing-card.popular {
        order: -1;
    }

    .form-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .checkbox-grid,
    .radio-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .cta-box {
        padding: 40px 24px;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    /* Learn page mobile */
    .learn-hero {
        padding: 120px 0 40px;
    }

    .learn-layout {
        flex-direction: column;
        gap: 24px;
        padding-bottom: 60px;
    }

    .learn-sidebar {
        position: static;
        min-width: unset;
        max-width: unset;
    }

    .sidebar-nav {
        flex-direction: row;
        overflow-x: auto;
        gap: 8px;
        padding: 12px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .sidebar-nav::-webkit-scrollbar {
        display: none;
    }

    .sidebar-link {
        font-size: 12px;
        padding: 8px 12px;
    }

    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .learn-category {
        margin-bottom: 48px;
    }

    .category-header {
        gap: 12px;
    }

    .category-icon {
        font-size: 28px;
    }

    .category-title {
        font-size: 20px;
    }

    .metric-card {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .about-stats {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 28px;
    }
}