/* ========================================================================
   LaserTools Landing Page – Design System
   Matches the existing Picture Engraver dark/purple aesthetic
   ======================================================================== */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand colors – derived from the existing Picture Engraver app */
    --bg-primary: #0d0d1a;
    --bg-secondary: #14142b;
    --bg-card: #1c1c3a;
    --bg-card-hover: #242450;

    --purple-400: #c084fc;
    --purple-500: #a855f7;
    --purple-600: #9333ea;
    --purple-700: #7e22ce;
    --purple-glow: rgba(168, 85, 247, 0.15);

    --cyan-400: #22d3ee;
    --cyan-500: #06b6d4;
    --cyan-600: #0891b2;
    --cyan-glow: rgba(6, 182, 212, 0.15);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border-subtle: rgba(148, 163, 184, 0.08);
    --border-card: rgba(148, 163, 184, 0.12);

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

/* --- Particle Canvas --- */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* --- Page Wrapper --- */
.page-wrapper {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- Header --- */
.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 2rem;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

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

.logo-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--purple-400), var(--purple-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
}

.nav-link:hover {
    color: var(--text-primary);
}

/* --- Hero Section --- */
.hero {
    text-align: center;
    padding: 4rem 2rem 3rem;
    max-width: 720px;
    margin: 0 auto;
    position: relative;
}

.hero-glow {
    position: absolute;
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
    width: 500px;
    height: 300px;
    background: radial-gradient(ellipse, var(--purple-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.title-gradient {
    background: linear-gradient(135deg, var(--purple-400) 0%, var(--purple-500) 40%, var(--cyan-400) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 3vw, 1.35rem);
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.hero-description {
    font-size: 0.95rem;
    color: var(--text-muted);
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.7;
}

/* --- Tools Grid --- */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 1rem 2rem 4rem;
    flex: 1;
}

/* --- Tool Card --- */
.tool-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem 2rem;
    cursor: pointer;
    transition:
        transform var(--transition-slow),
        border-color var(--transition-base),
        box-shadow var(--transition-base),
        background var(--transition-base);
    overflow: hidden;
}

.tool-card:hover {
    transform: translateY(-6px);
    background: var(--bg-card-hover);
}

.tool-card:active {
    transform: translateY(-2px);
}

/* Card Glow */
.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
    z-index: 0;
}

.tool-card:hover .card-glow {
    opacity: 1;
}

/* Engraver card accent */
.tool-card--engraver:hover {
    border-color: rgba(168, 85, 247, 0.3);
    box-shadow:
        0 8px 40px rgba(168, 85, 247, 0.12),
        0 0 80px rgba(168, 85, 247, 0.05);
}

.tool-card--engraver .card-glow {
    background: radial-gradient(ellipse at 30% 20%, var(--purple-glow) 0%, transparent 60%);
}

.tool-card--engraver .card-icon {
    color: var(--purple-400);
}

/* Cloudify card accent */
.tool-card--cloudify:hover {
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow:
        0 8px 40px rgba(6, 182, 212, 0.12),
        0 0 80px rgba(6, 182, 212, 0.05);
}

.tool-card--cloudify .card-glow {
    background: radial-gradient(ellipse at 70% 20%, var(--cyan-glow) 0%, transparent 60%);
}

.tool-card--cloudify .card-icon {
    color: var(--cyan-400);
}

/* Card Icon */
.card-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
    transition: transform var(--transition-slow);
}

.tool-card:hover .card-icon {
    transform: scale(1.1);
}

.card-icon svg {
    width: 100%;
    height: 100%;
}

/* Card Content */
.card-content {
    position: relative;
    z-index: 1;
    flex: 1;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.card-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

/* Feature List */
.card-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.card-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.tool-card--engraver .card-features svg {
    color: var(--purple-400);
}

.tool-card--cloudify .card-features svg {
    color: var(--cyan-400);
}

/* Card CTA */
.card-cta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    position: relative;
    z-index: 1;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border-subtle);
    transition: gap var(--transition-base);
}

.tool-card:hover .card-cta {
    gap: 0.75rem;
}

.tool-card--engraver .card-cta {
    color: var(--purple-400);
}

.tool-card--cloudify .card-cta {
    color: var(--cyan-400);
}

.cta-arrow {
    transition: transform var(--transition-base);
}

.tool-card:hover .cta-arrow {
    transform: translateX(4px);
}

/* --- Footer --- */
.site-footer {
    padding: 2rem;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.footer-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-emoji {
    display: inline-block;
    margin-left: 0.25rem;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
}

.footer-links a {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--purple-400);
}

.footer-divider {
    color: var(--text-muted);
    opacity: 0.4;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .tools-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        padding: 1rem 1.25rem 3rem;
    }

    .hero {
        padding: 3rem 1.25rem 2rem;
    }

    .site-header {
        padding: 1rem 1.25rem;
    }

    .tool-card {
        padding: 2rem 1.5rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.25rem;
    }
}

/* --- Entrance Animation --- */
@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.tool-card {
    animation: fadeSlideUp 0.8s ease-out backwards;
}

.tool-card:nth-child(1) {
    animation-delay: 0.15s;
}

.tool-card:nth-child(2) {
    animation-delay: 0.3s;
}

.site-footer {
    animation: fadeSlideUp 0.8s ease-out 0.45s backwards;
}

/* --- Maintenance Mode --- */
.tool-card--maintenance {
    pointer-events: none;
    cursor: not-allowed;
}

.tool-card--maintenance .card-content,
.tool-card--maintenance .card-icon,
.tool-card--maintenance .card-cta {
    opacity: 0.25;
    filter: grayscale(0.8);
}

.tool-card--maintenance .card-glow {
    display: none;
}

.tool-card--maintenance:hover {
    transform: none;
    background: var(--bg-card);
    border-color: var(--border-card);
    box-shadow: none;
}

.maintenance-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
    background: rgba(13, 13, 26, 0.6);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(2px);
    gap: 0.75rem;
    padding: 2rem;
}

.maintenance-icon {
    color: var(--text-muted);
    opacity: 0.8;
}

.maintenance-text {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.5;
}

/* --- Donation Section --- */
.donation-section {
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem 3rem;
}

@media (max-width: 768px) {
    .donation-section {
        padding: 0 1.25rem 2rem;
    }
}