:root {
    --bg-color: #050505;
    --card-bg: #111111;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --accent: #D4FF00;
    /* Neon/Safety Green-Yellow */
    --accent-hover: #b8dd00;
    --danger: #ff4848;

    --font-main: 'Outfit', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    --container-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
}

body {
    overflow-x: hidden;
}

/* Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: -1px;
    background: linear-gradient(to right, #fff, #666);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-weight: 700;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent);
    color: #000;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(212, 255, 0, 0.3);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--text-muted);
    color: var(--text-main);
    margin-top: 1rem;
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Navbar */
.navbar {
    padding: 1.5rem 0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    text-align: center;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: 2px;
}

/* Hero */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 0 var(--spacing-sm);
    animation: fadeUp 1s ease-out;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Tips Section */
.tips-gallery {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.tip-card {
    background: var(--card-bg);
    /* Fallback */
    border: 1px solid #222;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    overflow: hidden;
    /* Generic reveal class handles visibility, but we keep this compatible */
}

/* Generic Reveal Class (Updated Step 37) */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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


.tip-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.tip-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.tip-number {
    color: var(--accent);
    font-weight: 800;
    font-size: 1rem;
    margin-bottom: 0.5rem;
    display: block;
}

.tip-title {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.tip-desc {
    color: var(--text-muted);
}

/* Form Section */
.contribute-section {
    background-color: #0a0a0a;
}

.idea-form {
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-left: 4px;
}

.form-group input,
.form-group textarea {
    background: #151515;
    border: 1px solid #333;
    padding: 1rem;
    color: var(--text-main);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: border 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

/* Footer */
.footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid #222;
    text-align: center;
    color: #666;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

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

/* Animations */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

/* Responsive */
@media (min-width: 768px) {
    .section-title {
        font-size: 5rem;
    }

    .hero-title {
        font-size: 6rem;
    }

    .tip-card {
        grid-template-columns: 1fr 1fr;
    }

    .tip-card:nth-child(even) .tip-image {
        order: 2;
    }

    .tip-image {
        height: 100%;
        min-height: 400px;
    }

    .tip-content {
        padding: var(--spacing-lg);
    }
}