/* ==========================================
   CSS Variables - Brand Colors
   ========================================== */
:root {
    --primary-color: #143D69;
    --secondary-color: #4CC7E8;
    --text-dark: #1a1a1a;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

html {
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================
   Header
   ========================================== */
.header {
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
}

.logo img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: contain;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0d2d4d 100%);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--secondary-color);
    color: var(--primary-color);
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background: #3eb5d4;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.2rem;
}

/* Social Share */
.social-share {
    margin-top: 3rem;
}

.share-text {
    font-size: 1rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.share-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.share-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: none;
    color: var(--white);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.share-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.share-btn.facebook { background: #1877f2; }
.share-btn.twitter { background: #1da1f2; }
.share-btn.whatsapp { background: #25d366; }
.share-btn.linkedin { background: #0077b5; }
.share-btn.email { background: #ea4335; }
.share-btn.copy { background: var(--secondary-color); }

/* ==========================================
   Sections
   ========================================== */
section {
    padding: 4rem 0;
}

section h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

section p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

/* Brief Overview */
.brief-overview {
    background: var(--bg-light);
}

.brief-overview p {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

/* Introduction Section */
.intro-section {
    max-width: 900px;
    margin: 0 auto;
}

/* ==========================================
   Features Grid
   ========================================== */
.features-section {
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1rem;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.8rem;
}

.feature-card h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

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

/* ==========================================
   Access Steps
   ========================================== */
.access-section {
    background: var(--bg-light);
}

.access-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
}

.step h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

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

/* ==========================================
   Tips Box
   ========================================== */
.tips-box {
    max-width: 900px;
    margin: 2rem auto 0;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.tips-box h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    margin: 0 0 1rem;
    font-size: 1.05rem;
}

.tips-box ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.tips-box li {
    position: relative;
    padding-left: 1.5rem;
    margin: 0.6rem 0;
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.tips-box li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--secondary-color);
    font-weight: 700;
}

/* ==========================================
   VIP Benefits
   ========================================== */
.vip-section {
    background: var(--white);
}

.vip-section > .container > p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2rem;
}

.benefits-list {
    list-style: none;
    max-width: 800px;
    margin: 0 auto;
}

.benefits-list li {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    margin-bottom: 1rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.benefits-list li:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

.benefits-list i {
    color: var(--secondary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.benefits-list strong {
    color: var(--primary-color);
    font-size: 1.1rem;
    display: block;
    margin-bottom: 0.25rem;
}

.benefits-list p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin: 0;
}

/* ==========================================
   Standout Section
   ========================================== */
.standout-section {
    background: var(--primary-color);
    color: var(--white);
}

.standout-section h2 {
    color: var(--white);
}

.standout-section > .container > p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2rem;
    color: rgba(255, 255, 255, 0.9);
}

.standout-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.standout-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.standout-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.standout-item i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.standout-item h3 {
    color: var(--white);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.standout-item p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.95rem;
}

/* ==========================================
   Tips Section
   ========================================== */
.tips-section {
    background: var(--bg-light);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.tip-card {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.tip-card:hover {
    border-color: var(--secondary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.tip-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.tip-card h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

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

/* ==========================================
   CTA Section
   ========================================== */
.cta-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #3eb5d4 100%);
    color: var(--primary-color);
    text-align: center;
}

.cta-section h2 {
    color: var(--primary-color);
}

.cta-section p {
    color: var(--primary-color);
    max-width: 800px;
    margin: 0 auto 2rem;
    opacity: 0.9;
}

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

.cta-section .btn-primary:hover {
    background: #0d2d4d;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    font-weight: bold;
}

.footer-logo img {
    width: 28px;
    height: 28px;
    border-radius: 7px;
    object-fit: contain;
}

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

.footer-links a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin: 0.5rem 0;
}

.footer-bottom a,
.footer-bottom a:visited {
    color: var(--secondary-color);
    text-decoration: none;
}

.footer-bottom a:hover {
    color: var(--white);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.footer-bottom a:focus-visible {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
    border-radius: 4px;
}

.disclaimer {
    font-size: 0.85rem !important;
    opacity: 0.7;
}

/* ==========================================
   Toast Notification
   ========================================== */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(100px);
    transition: all 0.3s ease;
    z-index: 2000;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 0.75rem;
    }

    .nav {
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .nav {
        gap: 1rem;
    }

    .nav a {
        font-size: 0.9rem;
    }

    section h2 {
        font-size: 1.5rem;
    }

    section p {
        font-size: 1rem;
    }

    .features-grid,
    .access-steps,
    .standout-grid,
    .tips-grid {
        grid-template-columns: 1fr;
    }

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

    .share-buttons {
        gap: 0.75rem;
    }

    .share-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 3rem 0;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .btn-primary {
        padding: 0.85rem 1.5rem;
        font-size: 1rem;
    }

    .btn-large {
        padding: 1rem 1.75rem;
        font-size: 1.1rem;
    }

    section {
        padding: 3rem 0;
    }

    .logo {
        font-size: 1.2rem;
    }

    .logo img {
        width: 28px;
        height: 28px;
        border-radius: 7px;
    }

    .tips-box {
        padding: 1.25rem;
    }
}

/* ==========================================
   Floating CTA Button
   ========================================== */
.floating-cta {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: linear-gradient(135deg, var(--secondary-color) 0%, #3BADD4 100%);
    color: var(--white);
    padding: 1.25rem 3rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 8px 30px rgba(76, 199, 232, 0.6);
    z-index: 999;
    transition: all 0.4s ease;
    opacity: 0;
    visibility: hidden;
    border: 2px solid rgba(255, 255, 255, 0.3);
    letter-spacing: 0.5px;
}

.floating-cta.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.floating-cta:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0F2E54 100%);
    box-shadow: 0 10px 40px rgba(20, 61, 105, 0.7);
    transform: translateX(-50%) translateY(-5px) scale(1.05);
    border-color: rgba(255, 255, 255, 0.5);
}

.floating-cta i {
    font-size: 1.5rem;
    animation: playIcon 1.5s ease-in-out infinite;
}

/* Play icon animation */
@keyframes playIcon {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
}

/* Pulse animation for floating button */
@keyframes pulse {
    0% {
        box-shadow: 0 8px 30px rgba(76, 199, 232, 0.6);
    }
    50% {
        box-shadow: 0 8px 40px rgba(76, 199, 232, 1), 0 0 0 8px rgba(76, 199, 232, 0.2);
    }
    100% {
        box-shadow: 0 8px 30px rgba(76, 199, 232, 0.6);
    }
}

.floating-cta.show {
    animation: pulse 2.5s ease-in-out infinite;
}

/* Responsive adjustments for floating button */
@media (max-width: 768px) {
    .floating-cta {
        bottom: 20px;
        padding: 1.125rem 2.5rem;
        font-size: 1.125rem;
    }
    
    .floating-cta.show {
        transform: translateX(-50%) translateY(0);
    }
    
    .floating-cta:hover {
        transform: translateX(-50%) translateY(-5px) scale(1.05);
    }
    
    .floating-cta i {
        font-size: 1.375rem;
    }
}

@media (max-width: 480px) {
    .floating-cta {
        bottom: 20px;
        padding: 1rem 2rem;
        font-size: 1rem;
        gap: 0.5rem;
    }
    
    .floating-cta.show {
        transform: translateX(-50%) translateY(0);
    }
    
    .floating-cta:hover {
        transform: translateX(-50%) translateY(-5px) scale(1.05);
    }
    
    .floating-cta i {
        font-size: 1.25rem;
    }
}