/* ===========================
   PREMIUM LANDING PAGE STYLES
   =========================== */

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

:root {
    --primary-blue: #3b82f6;
    --primary-indigo: #6366f1;
    --dark-blue: #1e40af;
    --light-blue: #dbeafe;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-600: #4b5563;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-soft: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--white);
    overflow-x: hidden;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.logo-icon {
    font-size: 1.75rem;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.cta-btn-small {
    background: var(--gradient-soft);
    color: white !important;
    padding: 0.5rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-btn-small:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

/* Hero Section */
.hero {
    padding: 8rem 2rem 4rem;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease 0.1s backwards;
}

.gradient-text {
    background: var(--gradient-soft);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.8;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    animation: fadeInUp 0.6s ease 0.3s backwards;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gradient-soft);
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.125rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    background: var(--white);
    color: var(--primary-blue);
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.125rem;
    border: 2px solid var(--gray-200);
    transition: border-color 0.3s ease, background 0.3s ease;
}

.btn-secondary:hover {
    border-color: var(--primary-blue);
    background: var(--light-blue);
}

.btn-icon {
    transition: transform 0.3s ease;
}

.btn-primary:hover .btn-icon,
.btn-secondary:hover .btn-icon {
    transform: translateX(5px);
}

.hero-stats {
    display: flex;
    gap: 3rem;
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-soft);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

/* Hero Visual Cards */
.hero-visual {
    position: relative;
    height: 500px;
}

.hero-card {
    position: absolute;
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.card-1 {
    width: 280px;
    top: 20px;
    left: 0;
    animation: floatCard 3s ease-in-out infinite;
}

.card-2 {
    width: 250px;
    top: 180px;
    right: 40px;
    animation: floatCard 3s ease-in-out 1s infinite;
}

.card-3 {
    width: 260px;
    bottom: 40px;
    left: 60px;
    animation: floatCard 3s ease-in-out 2s infinite;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.card-icon {
    font-size: 1.5rem;
}

.progress-bar {
    background: var(--gray-200);
    height: 8px;
    border-radius: 1rem;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    background: var(--gradient-soft);
    height: 100%;
    border-radius: 1rem;
    animation: progressFill 2s ease;
}

.timer-display,
.score-display {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-soft);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-text {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Trust Strip */
.trust-strip {
    background: var(--gray-900);
    color: white;
    padding: 2rem;
}

.trust-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
}

.trust-icon {
    font-size: 1.5rem;
}

/* About Section */
.about-section {
    padding: 6rem 2rem;
    background: var(--white);
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.founder-photo-card {
    background: var(--gradient-soft);
    border-radius: 1.5rem;
    padding: 2rem;
    text-align: center;
    color: white;
    box-shadow: 0 20px 50px rgba(59, 130, 246, 0.3);
    overflow: hidden;
}

.founder-photo {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: 1rem;
    margin-bottom: 1.5rem;
    border: 4px solid rgba(255, 255, 255, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.founder-photo:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.founder-role {
    font-size: 1.25rem;
    font-weight: 600;
    opacity: 0.9;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
}

.about-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

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

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

.detail-icon {
    font-size: 2rem;
}

.detail-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.detail-value {
    font-size: 1.125rem;
    color: var(--gray-900);
    font-weight: 600;
}

/* Features Section */
.features-section {
    padding: 6rem 2rem;
    background: var(--gray-50);
}

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

.features-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-top: 1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 1.5rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

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

.feature-description {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* Audience Section */
.audience-section {
    padding: 6rem 2rem;
    background: white;
}

.audience-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.audience-card {
    background: var(--gray-50);
    padding: 2.5rem 2rem;
    border-radius: 1.5rem;
    transition: all 0.3s ease;
}

.audience-card:hover {
    background: var(--light-blue);
    transform: translateY(-5px);
}

.audience-icon {
    font-size: 3.5rem;
    display: block;
    margin-bottom: 1rem;
}

.audience-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.audience-card p {
    color: var(--gray-600);
}

/* Why Section */
.why-section {
    padding: 6rem 2rem;
    background: var(--gray-50);
}

.why-container {
    max-width: 900px;
    margin: 0 auto;
}

.why-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 3rem;
}

.why-item {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.why-number {
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-soft);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    flex-shrink: 0;
}

.why-text h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.why-text p {
    color: var(--gray-600);
    font-size: 1.125rem;
}

/* CTA Section */
.cta-section {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-indigo) 100%);
    text-align: center;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 3rem;
    font-weight: 900;
    color: white;
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
}

.btn-primary-large {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: white;
    color: var(--primary-blue);
    padding: 1.25rem 3rem;
    border-radius: 1rem;
    text-decoration: none;
    font-weight: 800;
    font-size: 1.25rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-primary-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.cta-note {
    margin-top: 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: white;
    padding: 4rem 2rem 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-links {
    display: flex;
    gap: 4rem;
}

.footer-column h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: white;
}

.founder-name {
    color: white;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.founder-uni {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes floatCard {

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

    50% {
        transform: translateY(-15px);
    }
}

@keyframes progressFill {
    from {
        width: 0;
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        display: none;
    }

    .about-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
    }

    .nav-links a:not(.cta-btn-small) {
        display: none;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        gap: 1.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .footer-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-links {
        gap: 2rem;
    }

    .cta-title {
        font-size: 2rem;
    }

    .cta-subtitle {
        font-size: 1.125rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection Color */
::selection {
    background: var(--primary-blue);
    color: white;
}