/* ==========================================
   NovaTech Under Construction - Master Styles
   ========================================== */

/* Theme Variables & Design Tokens */
:root {
    /* Accent Themes */
    --accent-cyber: #00f2fe;
    --accent-cyber-glow: rgba(0, 242, 254, 0.4);
    --accent-cyber-grad: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);

    --accent-violet: #c084fc;
    --accent-violet-glow: rgba(192, 132, 252, 0.4);
    --accent-violet-grad: linear-gradient(135deg, #c084fc 0%, #764ba2 100%);

    --accent-amber: #fbbf24;
    --accent-amber-glow: rgba(251, 191, 36, 0.4);
    --accent-amber-grad: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);

    /* Active Accent Defaults to Cyber */
    --accent: var(--accent-cyber);
    --accent-glow: var(--accent-cyber-glow);
    --accent-grad: var(--accent-cyber-grad);

    /* Dark Mode Defaults */
    --bg-dark: #070913;
    --bg-card: rgba(18, 22, 41, 0.65);
    --bg-card-hover: rgba(28, 34, 61, 0.75);
    --bg-input: rgba(10, 13, 26, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --border-color-hover: rgba(255, 255, 255, 0.25);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --shadow-subtle: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px -10px var(--accent-glow);
    --glass-blur: blur(16px);
    
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Overrides */
[data-theme="light"] {
    --bg-dark: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.75);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --bg-input: rgba(241, 245, 249, 0.9);
    --border-color: rgba(15, 23, 42, 0.1);
    --border-color-hover: rgba(15, 23, 42, 0.25);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    --shadow-subtle: 0 10px 30px -10px rgba(15, 23, 42, 0.12);
}

/* Accent Attribute Switches */
[data-accent="cyber"] {
    --accent: var(--accent-cyber);
    --accent-glow: var(--accent-cyber-glow);
    --accent-grad: var(--accent-cyber-grad);
}
[data-accent="violet"] {
    --accent: var(--accent-violet);
    --accent-glow: var(--accent-violet-glow);
    --accent-grad: var(--accent-violet-grad);
}
[data-accent="amber"] {
    --accent: var(--accent-amber);
    --accent-glow: var(--accent-amber-glow);
    --accent-grad: var(--accent-amber-grad);
}

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

html, body {
    width: 100%;
    min-height: 100vh;
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
    transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

/* Canvas & Ambient Glow Spheres */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.glow-sphere {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    z-index: 0;
    pointer-events: none;
    opacity: 0.45;
    animation: floatGlow 18s ease-in-out infinite alternate;
}

.sphere-1 {
    width: 450px;
    height: 450px;
    top: -100px;
    left: -100px;
    background: var(--accent);
}

.sphere-2 {
    width: 500px;
    height: 500px;
    bottom: -150px;
    right: -150px;
    background: #4f46e5;
    animation-delay: -9s;
}

.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 32px 32px;
    z-index: 0;
    pointer-events: none;
    opacity: 0.6;
}

/* Page Layout Container */
.page-wrapper {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0 1.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-logo {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--accent);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.badge {
    font-size: 0.725rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-color);
    color: var(--accent);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Accent Selector Dots */
.accent-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-card);
    padding: 0.35rem 0.6rem;
    border-radius: 30px;
    border: 1px solid var(--border-color);
    backdrop-filter: var(--glass-blur);
}

.accent-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.accent-dot:hover {
    transform: scale(1.2);
}

.accent-dot.active {
    border-color: #ffffff;
    transform: scale(1.25);
}

/* Theme Toggle Button */
.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    backdrop-filter: var(--glass-blur);
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--accent-glow);
}

/* Hero Section */
.hero-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 3rem 0 4rem;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.45rem 1.1rem;
    border-radius: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    backdrop-filter: var(--glass-blur);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
    animation: pulse 1.8s infinite;
}

/* Main Heading & Gradient Text */
.main-heading {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4.25rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    max-width: 850px;
    margin-bottom: 1.25rem;
}

.gradient-text {
    background: var(--accent-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.sub-heading {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 620px;
    min-height: 1.8em;
    margin-bottom: 3rem;
    font-weight: 400;
}

.cursor {
    color: var(--accent);
    font-weight: 700;
    animation: blink 0.8s infinite;
}

/* Countdown Card */
.countdown-card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    backdrop-filter: var(--glass-blur);
    padding: 2rem 2.5rem;
    border-radius: 24px;
    box-shadow: var(--shadow-subtle);
    margin-bottom: 3.5rem;
    transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.countdown-card:hover {
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-glow);
}

.time-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.time-ring {
    position: relative;
    width: 84px;
    height: 84px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ring-svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.ring-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.08);
    stroke-width: 6;
}

.ring-fill {
    fill: none;
    stroke: var(--accent);
    stroke-width: 6;
    stroke-linecap: round;
    stroke-dasharray: 264;
    stroke-dashoffset: 66;
    transition: stroke-dashoffset 0.8s ease, stroke var(--transition-smooth);
    filter: drop-shadow(0 0 6px var(--accent-glow));
}

.time-val {
    position: absolute;
    font-family: var(--font-heading);
    font-size: 1.85rem;
    font-weight: 700;
    color: var(--text-primary);
}

.time-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.time-colon {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-top: -1.5rem;
}

/* Subscription Form */
.subscription-wrapper {
    width: 100%;
    max-width: 540px;
    margin-bottom: 4rem;
}

.subscribe-form {
    width: 100%;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding: 0.35rem 0.4rem 0.35rem 1.25rem;
    backdrop-filter: var(--glass-blur);
    transition: all var(--transition-fast);
}

.input-group:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 25px var(--accent-glow);
}

.input-icon {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-right: 0.75rem;
}

.input-group input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.975rem;
}

.input-group input::placeholder {
    color: var(--text-muted);
}

.primary-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: var(--accent-grad);
    color: #000000;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.925rem;
    padding: 0.85rem 1.6rem;
    border-radius: 40px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 20px var(--accent-glow);
    white-space: nowrap;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px var(--accent-glow);
}

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

.btn-arrow {
    transition: transform var(--transition-fast);
}

.primary-btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* Form Alert Banner */
.form-alert {
    display: none;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    padding: 0.85rem 1.25rem;
    border-radius: 14px;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: left;
    backdrop-filter: var(--glass-blur);
    animation: fadeIn 0.3s ease;
}

.form-alert.visible {
    display: flex;
}

.form-alert.success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.4);
    color: #34d399;
}

.form-alert.error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: #f87171;
}

.form-alert.warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.4);
    color: #fbbf24;
}

/* Feature Sneak Peek Grid */
.sneak-peek-section {
    width: 100%;
    max-width: 1000px;
    margin-top: 1rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
}

.section-title i {
    color: var(--accent);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.75rem;
    text-align: left;
    backdrop-filter: var(--glass-blur);
    transition: all var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-subtle);
}

.card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--accent);
    margin-bottom: 1.25rem;
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1.5rem;
    flex: 1;
}

.progress-track {
    width: 100%;
    height: 6px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-bar {
    height: 100%;
    background: var(--accent-grad);
    border-radius: 10px;
    transition: width 1s ease-out;
}

.progress-num {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* Footer */
.footer {
    padding: 2.5rem 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}

.social-links {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.social-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px var(--accent-glow);
}

.copyright {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Keyframe Animations */
@keyframes floatGlow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(40px, 50px) scale(1.15); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.85); }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive Media Queries */
@media (max-width: 768px) {
    .navbar {
        padding: 1.5rem 0;
    }
    
    .hero-container {
        padding: 1.5rem 0 3rem;
    }

    .countdown-card {
        padding: 1.25rem 1rem;
        gap: 0.6rem;
    }

    .time-ring {
        width: 64px;
        height: 64px;
    }

    .time-val {
        font-size: 1.35rem;
    }

    .time-colon {
        font-size: 1.5rem;
        margin-top: -1.2rem;
    }

    .input-group {
        flex-direction: column;
        border-radius: 20px;
        padding: 0.75rem;
        gap: 0.75rem;
    }

    .input-icon {
        display: none;
    }

    .input-group input {
        width: 100%;
        text-align: center;
        padding: 0.5rem 0;
    }

    .primary-btn {
        width: 100%;
        justify-content: center;
    }
}