/* ==========================================
   Vibecode Valley - Styles
   Digital Zen meets Hacker Aesthetic
   ========================================== */

:root {
    /* Color Palette */
    --deep-indigo: #1a1b3a;
    --darker-indigo: #0f1020;
    --neon-blue: #4f9eff;
    --neon-purple: #a855f7;
    --neon-mint: #34d399;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    --gradient-glow: linear-gradient(135deg, rgba(79, 158, 255, 0.1), rgba(168, 85, 247, 0.1));

    /* Spacing */
    --container-max: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ==========================================
   Reset & Base Styles
   ========================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--darker-indigo);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 18px;
    font-weight: 400;
    overflow-x: hidden;
}

/* ==========================================
   Container
   ========================================== */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==========================================
   Hero Section
   ========================================== */

.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--deep-indigo);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(79, 158, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(168, 85, 247, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(52, 211, 153, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    width: 100%;
}

.hero-left {
    text-align: left;
}

.hero-right {
    display: flex;
    align-items: center;
}

.hero-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    line-height: 1.6;
}

.cta-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(79, 158, 255, 0.2);
    border-radius: 16px;
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.cta-box h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.cta-box p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

/* ==========================================
   Form Styles
   ========================================== */

.signup-form {
    margin-top: var(--spacing-md);
}

.form-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.form-group input[type="email"] {
    flex: 1;
    min-width: 250px;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(79, 158, 255, 0.3);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-family);
    transition: all 0.3s ease;
}

.form-group input[type="email"]:focus {
    outline: none;
    border-color: var(--neon-blue);
    box-shadow: 0 0 0 3px rgba(79, 158, 255, 0.1);
}

.form-group input[type="email"]::placeholder {
    color: var(--text-muted);
}

.btn-primary {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-family);
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(79, 158, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(79, 158, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.form-message {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: 8px;
    font-size: 0.95rem;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(52, 211, 153, 0.1);
    color: var(--neon-mint);
    border: 1px solid rgba(52, 211, 153, 0.3);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.form-note {
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ==========================================
   Section Styles
   ========================================== */

.section {
    padding: var(--spacing-2xl) 0;
    background: var(--darker-indigo);
    border-top: 1px solid rgba(79, 158, 255, 0.1);
}

.section:nth-child(even) {
    background: var(--deep-indigo);
}

.section-icon {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.lead {
    font-size: clamp(1.2rem, 2.5vw, 1.5rem);
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.highlight {
    font-size: 1.2rem;
    color: var(--text-primary);
    text-align: center;
    margin-top: var(--spacing-lg);
    font-weight: 500;
    line-height: 1.6;
}

/* Feature List */
.feature-list {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.feature-list p {
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.feature-list ul {
    list-style: none;
    padding: 0;
    display: grid;
    gap: var(--spacing-sm);
}

.feature-list li {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 3.5rem;
    position: relative;
    color: var(--text-primary);
    background: rgba(168, 85, 247, 0.05);
    border: 1px solid rgba(168, 85, 247, 0.2);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.feature-list li:hover {
    background: rgba(168, 85, 247, 0.08);
    transform: translateX(4px);
    box-shadow: 0 4px 16px rgba(168, 85, 247, 0.15);
}

.feature-list li::before {
    content: "→";
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--neon-purple);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Checklist */
.checklist {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.check-item {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 6rem;
    background: rgba(52, 211, 153, 0.05);
    border: 1px solid rgba(52, 211, 153, 0.2);
    border-radius: 12px;
    font-size: 1rem;
    position: relative;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    min-height: 70px;
}

.check-item:hover {
    background: rgba(52, 211, 153, 0.08);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(52, 211, 153, 0.15);
}

.check-item::before {
    content: "✓";
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: var(--neon-mint);
    color: var(--darker-indigo);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 2rem;
}

/* Project Highlight */
.project-highlight {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--gradient-glow);
    border: 1px solid rgba(79, 158, 255, 0.2);
    border-radius: 16px;
    margin: var(--spacing-lg) 0;
}

.project-highlight h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
}

/* Journey List */
.journey-list {
    max-width: 800px;
    margin: 0 auto;
}

.journey-list p {
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.journey-list ul {
    list-style: none;
    padding: 0;
    display: grid;
    gap: var(--spacing-sm);
}

.journey-list li {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 3.5rem;
    position: relative;
    color: var(--text-primary);
    background: rgba(168, 85, 247, 0.05);
    border: 1px solid rgba(168, 85, 247, 0.2);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.journey-list li:hover {
    background: rgba(168, 85, 247, 0.08);
    transform: translateX(4px);
    box-shadow: 0 4px 16px rgba(168, 85, 247, 0.15);
}

.journey-list li::before {
    content: "→";
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--neon-purple);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Learning Grid */
.learning-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    max-width: 900px;
    margin: 0 auto;
}

.learning-item {
    padding: var(--spacing-lg) var(--spacing-md);
    background: transparent;
    border: 2px solid rgba(79, 158, 255, 0.3);
    border-radius: 16px;
    font-size: 1.05rem;
    color: var(--text-primary);
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
    font-weight: 500;
}

.learning-item:hover {
    border-color: var(--neon-blue);
    background: rgba(79, 158, 255, 0.05);
    transform: scale(1.02);
    box-shadow: 0 8px 24px rgba(79, 158, 255, 0.2);
}

.learning-item::before {
    content: attr(data-emoji);
    display: block;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

/* Instructor Card */
.instructor-card {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(52, 211, 153, 0.2);
    border-radius: 16px;
    text-align: center;
}

.instructor-card blockquote {
    font-size: 1.3rem;
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.instructor-info {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.instructor-info strong {
    color: var(--neon-mint);
    font-weight: 600;
    font-size: 1.2rem;
}

/* Course Modules */
.course-modules {
    max-width: 800px;
    margin: var(--spacing-lg) auto;
    display: grid;
    gap: var(--spacing-md);
}

.module {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(79, 158, 255, 0.05);
    border: 1px solid rgba(79, 158, 255, 0.2);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.module:hover {
    background: rgba(79, 158, 255, 0.08);
    transform: translateX(8px);
}

.module-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.2rem;
}

.module-title {
    font-size: 1.1rem;
    color: var(--text-primary);
}

/* ==========================================
   CTA Section
   ========================================== */

.section-cta {
    text-align: center;
    background: var(--deep-indigo);
    padding: var(--spacing-2xl) 0;
}

.section-cta h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.section-cta .signup-form {
    max-width: 600px;
    margin: var(--spacing-lg) auto;
}

/* ==========================================
   Footer
   ========================================== */

.footer {
    background: var(--darker-indigo);
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-top: 1px solid rgba(79, 158, 255, 0.1);
}

.footer-tagline {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 400;
}

.footer-copyright {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ==========================================
   Responsive Design
   ========================================== */

@media (max-width: 968px) {
    body {
        font-size: 16px;
    }

    .hero {
        height: auto;
        min-height: 100vh;
        padding: var(--spacing-lg) 0;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .hero-left {
        text-align: center;
    }

    .cta-box {
        padding: var(--spacing-md);
    }

    .form-group {
        flex-direction: column;
    }

    .form-group input[type="email"],
    .btn-primary {
        width: 100%;
    }

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

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

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

/* ==========================================
   Animations
   ========================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

/* Smooth scrolling for all links */
a {
    color: var(--neon-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--neon-purple);
}