:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --bg-dark: #000000;
    /* Deep black for Apple look */
    --bg-card: #111111;
    --text-light: #f5f5f7;
    --text-gray: #86868b;
    --glass: rgba(20, 20, 20, 0.8);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.5;
    font-size: 21px;
    /* Large base font */
    text-align: center;
    /* Force center alignment */
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
}

/* Navigation */
.navbar {
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
}

.logo-img {
    height: 45px;
    width: auto;
    object-fit: contain;
}

.nav-links a {
    color: var(--text-gray);
    text-decoration: none;
    margin-left: 30px;
    font-size: 0.9rem;
    transition: color 0.3s;
}

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

/* Sections - CRITICAL SPACING FIX */
section {
    padding: 120px 0;
    /* Huge vertical padding */
    display: block;
    position: relative;
    width: 100%;
    clear: both;
    /* Prevent float overlaps */
}

/* Typography */
h1 {
    font-size: 5rem;
    /* Massive Hero */
    line-height: 1.05;
    font-weight: 700;
    letter-spacing: -0.015em;
    margin-bottom: 30px;
}

h2 {
    font-size: 3.5rem;
    line-height: 1.1;
    font-weight: 600;
    letter-spacing: -0.005em;
    margin-bottom: 40px;
    margin-top: 0;
}

h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 20px;
}

p {
    font-size: 1.4rem;
    line-height: 1.5;
    color: var(--text-gray);
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.subtitle {
    font-size: 1.8rem;
    font-weight: 400;
    max-width: 700px;
    margin-bottom: 60px;
}

/* Buttons */
.cta-group {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 60px;
}

.btn-primary {
    background: var(--text-light);
    color: var(--bg-dark);
    padding: 18px 40px;
    border-radius: 980px;
    /* Pill shape */
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.2s;
    display: inline-block;
}

.btn-primary:hover {
    transform: scale(1.05);
}

.btn-outline {
    border: 1px solid var(--text-gray);
    color: var(--primary);
    padding: 18px 40px;
    border-radius: 980px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    display: inline-block;
}

/* Images */
.feature-img {
    width: 100%;
    max-width: 900px;
    height: auto;
    border-radius: 30px;
    margin-top: 40px;
    margin-bottom: 40px;
    display: block;
    /* No inline spacing issues */
}

/* Layouts */
.split-layout {
    display: flex;
    flex-direction: column;
    /* Stack vertically */
    gap: 60px;
    align-items: center;
    width: 100%;
}

/* Responsive Grid System */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    width: 100%;
}

.dashboard-grid {
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }

    .dashboard-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-item {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 24px;
    text-align: center;
}

.card {
    background: var(--bg-card);
    padding: 50px;
    border-radius: 30px;
    width: 100%;
    max-width: 600px;
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Footer */
footer {
    padding: 80px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 0;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    h1 {
        font-size: 3.5rem;
    }

    h2 {
        font-size: 2.5rem;
    }

    p {
        font-size: 1.2rem;
    }

    section {
        padding: 80px 0;
    }
}

/* Modern Auth Styles */
.auth-card-modern {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 3rem;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    text-align: left;
}

.form-group-modern {
    margin-bottom: 1.5rem;
}

.form-group-modern label {
    display: block;
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    color: var(--text-gray);
    font-size: 1rem;
    pointer-events: none;
    z-index: 10;
}

.input-wrapper input {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    padding: 1rem 1rem 1rem 3rem;
    /* Left padding for icon */
    border-radius: 12px;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

.input-wrapper input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
    background: rgba(0, 0, 0, 0.5);
}

.password-toggle {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-gray);
    cursor: pointer;
    font-size: 1rem;
    padding: 0;
    display: flex;
    align-items: center;
    transition: color 0.2s;
}

.password-toggle:hover {
    color: var(--text-light);
}

.link-modern {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.link-modern:hover {
    color: var(--text-light);
    text-decoration: underline;
}