/* Fonts & Reset */
:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --secondary: #10b981;
    --text-main: #1f2937;
    --text-muted: #4b5563;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --glass-border: rgba(255, 255, 255, 0.2);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-light);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
.navbar {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 50;
    padding: 1.5rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
}

.nav-logo-img {
    height: 40px;
    width: auto;
}

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

.nav-links a {
    font-weight: 500;
    color: var(--text-muted);
}

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

.btn-nav {
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--primary);
    border-radius: 9999px;
    color: var(--primary) !important;
    transition: all 0.2s;
}

.btn-nav:hover {
    background-color: var(--primary);
    color: white !important;
}

/* Hero Section */
.hero {
    position: relative;
    padding-top: 150px;
    /* Space for navbar */
    padding-bottom: 80px;
    background: radial-gradient(circle at 100% 0%, rgba(79, 70, 229, 0.1) 0%, rgba(255, 255, 255, 0) 50%);
    overflow: hidden;
}

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

.hero-title {
    font-size: 3.5rem;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #111827 0%, #4f46e5 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-cta-group {
    display: flex;
    gap: 1rem;
}

.cta-button {
    padding: 1rem 2rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 1.125rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cta-button.primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(79, 70, 229, 0.39);
}

.cta-button.secondary {
    background-color: transparent;
    border: 1px solid #e5e7eb;
    color: var(--text-main);
}

.cta-button:hover {
    transform: translateY(-2px);
}

.cta-button.primary:hover {
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.23);
}

.cta-button.secondary:hover {
    background-color: #f3f4f6;
}

/* Hero Visual Animation */
.hero-visual {
    position: relative;
}

.calendar-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 1.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.5);
    max-width: 400px;
    margin: 0 auto;
    position: relative;
}

.cal-header {
    border-bottom: 1px solid #e5e7eb;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.circles {
    display: flex;
    gap: 6px;
}

.circles span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.red {
    background: #ef4444;
}

.yellow {
    background: #f59e0b;
}

.green {
    background: #10b981;
}

.event-item {
    padding: 1rem;
    margin-bottom: 0.75rem;
    border-radius: 0.75rem;
    background: #f3f4f6;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 4px solid transparent;
}

.event-item.active {
    background: #eef2ff;
    border-left: 4px solid var(--primary);
}

.event-time {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

.event-detail {
    font-weight: 600;
    color: var(--text-main);
}

.float-animation {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

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

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

/* Sections */
.section-light {
    background-color: var(--bg-light);
    padding: 5rem 0;
}

.section-white {
    background-color: var(--bg-white);
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #111827;
}

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

/* Grid Layouts */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.info-card {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s;
}

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

.icon-box {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    padding: 1rem;
    background: #f0fdf4;
    border-radius: 50%;
    line-height: 1;
}

.info-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: #111827;
}

.info-card p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* How it works */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.step-item {
    text-align: center;
    padding: 2rem;
}

.step-number {
    font-size: 3rem;
    font-weight: 800;
    color: #e5e7eb;
    margin-bottom: 1rem;
    line-height: 1;
}

.step-item h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--primary);
}

/* Footer */
footer {
    padding: 3rem 0;
    background-color: white;
    border-top: 1px solid #e5e7eb;
}

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

.logo-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-muted);
}

.copyright {
    color: #9ca3af;
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta-group {
        justify-content: center;
    }

    .navbar {
        position: relative;
    }

    .hero {
        padding-top: 3rem;
    }
}