/*
 * K8 Theme Styles
 * Theme: K8 Theme
 * Version: 1.0.0
 */

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

a {
    text-decoration: none;
    color: inherit;
}

ul,
ol {
    list-style: none;
}

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

/* ================================
   VARIABLES
   ================================ */
:root {
    --primary-color: #dc2626;
    --primary-dark: #b91c1c;
    --secondary-color: #1f2937;
    --accent-color: #f59e0b;
    --text-color: #374151;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-light: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --container-width: 1200px;
    --header-height: 70px;
}

/* ================================
   CONTAINER
   ================================ */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ================================
   HEADER
   ================================ */
.site-header {
    background-color: var(--secondary-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

/* Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-bar {
    width: 25px;
    height: 3px;
    background-color: #fff;
    margin: 3px 0;
    transition: 0.3s;
}

/* Navigation */
.main-navigation ul {
    display: flex;
    gap: 30px;
}

.main-navigation a {
    color: #fff;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s;
}

.main-navigation a:hover {
    color: var(--accent-color);
}

.main-navigation a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width 0.3s;
}

.main-navigation a:hover::after {
    width: 100%;
}

/* Header Actions */
.header-actions {
    display: flex;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

.btn-login {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-login:hover {
    background-color: #fff;
    color: var(--secondary-color);
}

.btn-register {
    background-color: var(--primary-color);
    color: #fff;
}

.btn-register:hover {
    background-color: var(--primary-dark);
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
    padding: 14px 32px;
}

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

.btn-secondary {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
    padding: 14px 32px;
}

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

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

/* ================================
   HERO SECTION
   ================================ */
.hero-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #374151 100%);
    color: #fff;
    padding: 100px 0;
    text-align: center;
}

.hero-small {
    padding: 60px 0;
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    color: rgba(255, 255, 255, 0.9);
}

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

/* ================================
   SECTION TITLES
   ================================ */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: var(--secondary-color);
}

/* ================================
   STATS SECTION
   ================================ */
.stats-section {
    background-color: var(--primary-color);
    color: #fff;
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* ================================
   FEATURES SECTION
   ================================ */
.features-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background-color: #fff;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ================================
   TIMELINE SECTION
   ================================ */
.timeline-section {
    padding: 80px 0;
}

.timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.timeline-item {
    padding: 30px;
    border-left: 3px solid var(--primary-color);
    background-color: var(--bg-light);
    border-radius: 0 var(--radius) var(--radius) 0;
}

.timeline-year {
    display: inline-block;
    background-color: var(--primary-color);
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.timeline-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.timeline-item p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ================================
   CERTIFICATES SECTION
   ================================ */
.certificates-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.certificates-table {
    overflow-x: auto;
}

.certificates-table table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.certificates-table th,
.certificates-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.certificates-table th {
    background-color: var(--secondary-color);
    color: #fff;
    font-weight: 600;
}

.certificates-table tr:last-child td {
    border-bottom: none;
}

.certificates-table tr:hover td {
    background-color: var(--bg-light);
}

/* ================================
   FAQ SECTION
   ================================ */
.faq-section {
    padding: 80px 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-light);
    border-radius: var(--radius);
    margin-bottom: 20px;
    overflow: hidden;
}

.faq-question {
    padding: 20px 25px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary-color);
    cursor: pointer;
}

.faq-answer {
    padding: 0 25px 20px;
    color: var(--text-light);
}

/* ================================
   CTA SECTION
   ================================ */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.cta-description {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

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

/* ================================
   STEPS SECTION (Dang Nhap)
   ================================ */
.steps-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.step-card {
    background-color: #fff;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: #fff;
    font-size: 1.3rem;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 20px;
}

.step-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--secondary-color);
}

.step-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ================================
   TIPS SECTION
   ================================ */
.tips-section {
    padding: 80px 0;
}

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

.tip-item {
    background-color: var(--bg-light);
    padding: 25px 30px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    border-left: 4px solid var(--accent-color);
}

.tip-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.tip-item p {
    color: var(--text-light);
}

/* ================================
   ERRORS SECTION
   ================================ */
.errors-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.errors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.error-card {
    background-color: #fff;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary-color);
}

.error-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--secondary-color);
}

.error-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ================================
   PROMO CARDS SECTION
   ================================ */
.promo-cards-section {
    padding: 80px 0;
}

.promo-cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.promo-card {
    background-color: var(--bg-light);
    padding: 35px;
    border-radius: var(--radius-lg);
    position: relative;
    transition: transform 0.3s;
}

.promo-card:hover {
    transform: translateY(-5px);
}

.promo-highlight {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: #fff;
}

.promo-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--accent-color);
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.promo-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.promo-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.promo-highlight .promo-value {
    color: #fff;
}

.promo-desc {
    margin-bottom: 20px;
    opacity: 0.9;
}

.btn-promo {
    background-color: var(--primary-color);
    color: #fff;
    padding: 12px 25px;
}

.promo-highlight .btn-promo {
    background-color: #fff;
    color: var(--primary-color);
}

/* ================================
   PROMO TIMELINE
   ================================ */
.promo-timeline-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.promo-timeline {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.promo-timeline-item {
    background-color: #fff;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.promo-time {
    display: inline-block;
    background-color: var(--accent-color);
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.promo-timeline-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.promo-timeline-item p {
    color: var(--text-light);
}

/* ================================
   REWARDS SECTION
   ================================ */
.rewards-section {
    padding: 80px 0;
}

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

.reward-item {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.reward-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.reward-item p {
    color: var(--text-light);
}

/* ================================
   TERMS SECTION
   ================================ */
.terms-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.terms-content {
    max-width: 800px;
    margin: 0 auto;
    background-color: #fff;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.terms-content > p {
    margin-bottom: 20px;
    color: var(--text-color);
}

.terms-list {
    padding-left: 20px;
}

.terms-list li {
    list-style-type: disc;
    margin-bottom: 12px;
    color: var(--text-light);
}

/* ================================
   GUIDE STEPS SECTION
   ================================ */
.guide-steps-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.guide-steps {
    max-width: 900px;
    margin: 0 auto;
}

.guide-step {
    display: flex;
    gap: 25px;
    background-color: #fff;
    padding: 30px;
    border-radius: var(--radius-lg);
    margin-bottom: 25px;
    box-shadow: var(--shadow);
}

.step-icon {
    flex-shrink: 0;
}

.step-icon span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
}

.step-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.step-content p {
    color: var(--text-light);
}

/* ================================
   TIPS GUIDE SECTION
   ================================ */
.tips-guide-section {
    padding: 80px 0;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.tip-box {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
}

.tip-box h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.tip-box p {
    color: var(--text-light);
}

/* ================================
   FAQ GUIDE SECTION
   ================================ */
.faq-guide-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.faq-guide-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-guide-item {
    background-color: #fff;
    padding: 25px 30px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.faq-guide-item .faq-question {
    padding: 0;
    margin-bottom: 12px;
}

.faq-guide-item .faq-answer {
    padding: 0;
}

/* ================================
   CONTACT SECTIONS
   ================================ */
.contact-info-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.contact-info-card {
    background-color: #fff;
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.contact-info-card:hover {
    transform: translateY(-5px);
}

.contact-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.contact-detail {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.contact-desc {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Support Channels */
.support-channels-section {
    padding: 80px 0;
}

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

.channel-item {
    background-color: var(--bg-light);
    padding: 25px 30px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
}

.channel-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--secondary-color);
}

.channel-item p {
    color: var(--text-light);
}

/* FAQ Contact */
.faq-contact-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.faq-contact-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-contact-item {
    background-color: #fff;
    padding: 25px 30px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

/* ================================
   ABOUT SECTIONS
   ================================ */
.story-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.story-content {
    max-width: 800px;
    margin: 0 auto;
}

.story-content p {
    margin-bottom: 20px;
    font-size: 1.05rem;
    color: var(--text-color);
    line-height: 1.8;
}

/* Certificates About */
.certificates-about-section {
    padding: 80px 0;
}

.certificates-about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.certificate-card {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
}

.certificate-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.certificate-org {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.certificate-desc {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Stats About */
.stats-about-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.stats-about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.stat-about-item {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
}

.stat-about-item .stat-number {
    color: var(--primary-color);
}

/* Mission Section */
.mission-section {
    padding: 80px 0;
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.mission-item {
    background-color: var(--bg-light);
    padding: 35px;
    border-radius: var(--radius-lg);
}

.mission-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.mission-item p {
    color: var(--text-light);
}

/* ================================
   FOOTER
   ================================ */
.site-footer {
    background-color: var(--secondary-color);
    color: #fff;
    padding: 60px 0 30px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-navigation ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-navigation a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    transition: color 0.3s;
}

.footer-navigation a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.copyright {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 10px;
}

.footer-seo-text {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ================================
   IMAGES
   ================================ */
.hero-image {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: block;
    margin: 0 auto;
}

.feature-image {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.feature-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    display: block;
    margin: 0 auto;
}

.timeline-image,
.errors-image,
.rewards-image,
.tips-image,
.stats-image {
    margin-bottom: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.timeline-image img,
.errors-image img,
.rewards-image img,
.tips-image img,
.stats-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    display: block;
    margin: 0 auto;
}

/* ================================
   RESPONSIVE
   ================================ */
@media (max-width: 1024px) {
    .features-grid,
    .timeline,
    .steps-grid,
    .promo-timeline {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-info-grid,
    .certificates-about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .errors-grid,
    .mission-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .main-navigation {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--secondary-color);
        padding: 20px;
    }
    
    .main-navigation.active {
        display: block;
    }
    
    .main-navigation ul {
        flex-direction: column;
        gap: 15px;
    }
    
    .header-actions {
        display: none;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .features-grid,
    .timeline,
    .steps-grid,
    .promo-cards-grid,
    .promo-timeline,
    .tips-grid,
    .contact-info-grid,
    .certificates-about-grid,
    .errors-grid,
    .mission-grid,
    .stats-grid,
    .stats-about-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .guide-step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-icon {
        margin: 0 auto;
    }
    
    .hero-actions,
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 1.6rem;
    }
    
    section {
        padding: 50px 0 !important;
    }
    
    .feature-card,
    .step-card,
    .promo-card,
    .contact-info-card,
    .certificate-card,
    .mission-item,
    .stat-about-item {
        padding: 20px;
    }
}