/* ========================================
   LUMYN BAND - PREMIUM LANDING PAGE CSS
   ======================================== */

/* Root Variables */
:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --accent-cyan: #00f0ff;
    --accent-cyan-glow: rgba(0, 240, 255, 0.3);
    --accent-cyan-strong: rgba(0, 240, 255, 0.6);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
    width: 100%;
    overflow-x: hidden;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: 0.02em;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   HEADER NAVIGATION
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(180deg, rgba(15, 15, 15, 0.95) 0%, rgba(15, 15, 15, 0) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
    padding: 1.5rem 0;
}

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

.logo-section {
    flex: 1;
}

.logo {
    height: 50px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 8px var(--accent-cyan-glow));
}

.status-badge {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    color: var(--accent-cyan);
    font-weight: 500;
    text-transform: uppercase;
    text-shadow: 0 0 10px var(--accent-cyan-glow);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 80px;
    padding: 60px 0;
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a2e 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.05) 0%, transparent 70%);
    filter: blur(60px);
    animation: float 8s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) translateX(0px); }
    50% { transform: translateY(20px) translateX(-20px); }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(180deg, #ffffff 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.01em;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Email Form */
.email-form-wrapper {
    margin-top: 3rem;
}

.email-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.input-wrapper {
    display: flex;
    gap: 0.75rem;
    width: 100%;
    max-width: 600px;
    flex-wrap: wrap;
    justify-content: center;
}

#emailInput {
    flex: 1;
    min-width: 250px;
    padding: 0.875rem 1.25rem;
    background-color: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(0, 240, 255, 0.2);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

#emailInput::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

#emailInput:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 20px var(--accent-cyan-glow), inset 0 0 10px rgba(0, 240, 255, 0.1);
}

.cta-button {
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, var(--accent-cyan) 0%, #00d4e8 100%);
    color: #000;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    box-shadow: 0 0 20px var(--accent-cyan-glow);
    white-space: nowrap;
}

.cta-button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--accent-cyan-strong), 0 8px 25px rgba(0, 240, 255, 0.2);
}

.cta-button:active:not(:disabled) {
    transform: translateY(0);
}

.cta-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-message {
    min-height: 24px;
    font-size: 0.9rem;
    font-weight: 500;
    animation: fadeIn 0.3s ease-out;
}

.form-message.success {
    color: var(--accent-cyan);
    text-shadow: 0 0 8px var(--accent-cyan-glow);
}

.form-message.error {
    color: #ff6b6b;
    text-shadow: 0 0 8px rgba(255, 107, 107, 0.3);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   FEATURES SECTION
   ======================================== */
.features {
    padding: 100px 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid rgba(0, 240, 255, 0.1);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.03) 0%, transparent 70%);
    filter: blur(60px);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 10;
}

.feature-card {
    padding: 2.5rem 2rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(0, 240, 255, 0.15);
    border-radius: 12px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(0, 240, 255, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.feature-card:hover {
    border-color: var(--accent-cyan);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: 0 0 30px var(--accent-cyan-glow), inset 0 0 20px rgba(0, 240, 255, 0.05);
    transform: translateY(-5px);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
    text-shadow: 0 0 20px var(--accent-cyan-glow);
    letter-spacing: 0.05em;
}

.feature-heading {
    font-size: 1.375rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.feature-tag {
    display: inline-block;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--accent-cyan);
    text-transform: uppercase;
    font-weight: 600;
    text-shadow: 0 0 8px var(--accent-cyan-glow);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background-color: var(--bg-primary);
    border-top: 1px solid rgba(0, 240, 255, 0.1);
    padding: 3rem 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-right {
    display: flex;
    gap: 2rem;
}

.footer-link {
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--accent-cyan);
    text-shadow: 0 0 8px var(--accent-cyan-glow);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    .header {
        padding: 1rem 0;
    }

    .nav-content {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }

    .hero {
        margin-top: 120px;
        padding: 40px 0;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    .input-wrapper {
        flex-direction: column;
    }

    #emailInput {
        min-width: 100%;
    }

    .cta-button {
        width: 100%;
    }

    .features {
        padding: 60px 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

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

    .footer-right {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .status-badge {
        font-size: 0.65rem;
    }

    .feature-number {
        font-size: 2rem;
    }

    .feature-heading {
        font-size: 1.125rem;
    }
}