/* ============================================================
   ImageKit Pro - Global Stylesheet
   ============================================================ */

:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: #161b2c;
    --bg-hover: #1e2436;
    --border: #262c40;

    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    --accent: #8b5cf6;
    --accent-hover: #a78bfa;
    --accent-glow: rgba(139, 92, 246, 0.4);
    --accent-secondary: #06b6d4;
    --accent-tertiary: #ec4899;

    --gradient: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);

    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;

    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --radius-full: 999px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--accent-glow);

    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
}

body.light {
    --bg-primary: #fafafa;
    --bg-secondary: #f3f4f6;
    --bg-card: #ffffff;
    --bg-hover: #f9fafb;
    --border: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    min-height: 100vh;
    transition: background var(--transition), color var(--transition);
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }
img, svg { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

body.light .site-header { background: rgba(250, 250, 250, 0.85); }

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    transition: opacity var(--transition);
}
.logo:hover { opacity: 0.85; color: var(--text-primary); }
.logo-icon { font-size: 1.5rem; }
.logo-text .accent {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-left: 2px;
}

.main-nav { display: flex; gap: 28px; align-items: center; }
.main-nav a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}
.main-nav a:hover { color: var(--text-primary); }
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transition);
    border-radius: 2px;
}
.main-nav a:hover::after { transform: scaleX(1); }

.theme-toggle {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    font-size: 1.1rem;
    transition: all var(--transition);
}
.theme-toggle:hover {
    background: var(--bg-hover);
    border-color: var(--accent);
    transform: translateY(-2px);
}
.theme-toggle .icon-moon { display: none; }
body.light .theme-toggle .icon-sun { display: none; }
body.light .theme-toggle .icon-moon { display: inline; }

.hero {
    padding: 100px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}
.hero > .container { position: relative; z-index: 1; }

.hero-title {
    font-size: clamp(2.2rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}
.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}
.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 36px;
    line-height: 1.7;
}
.hero-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 30px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 8px 24px var(--accent-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px var(--accent-glow);
    color: #fff;
}
.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border);
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}
.btn-secondary {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}
.btn-secondary:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-2px);
}
.btn-sm { padding: 10px 20px; font-size: 0.9rem; }

.hero-badges {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.section-title {
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}
.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 44px;
    font-size: 1.05rem;
}

.tools-section { padding: 60px 0; }
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}
.tool-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    color: var(--text-primary);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}
.tool-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: var(--shadow-glow);
    color: var(--text-primary);
}
.tool-card:hover::before { transform: scaleX(1); }
.tool-icon { font-size: 2.4rem; margin-bottom: 14px; display: block; }
.tool-card h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; }
.tool-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 16px;
    line-height: 1.5;
}
.tool-cta {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    transition: transform var(--transition);
    display: inline-block;
}
.tool-card:hover .tool-cta { transform: translateX(4px); }

.ad-slot {
    margin: 40px 0;
    padding: 20px;
    background: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    text-align: center;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ad-placeholder {
    color: var(--text-muted);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.why-section { padding: 80px 0; }
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}
.why-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    transition: all var(--transition);
}
.why-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.why-icon { font-size: 2.4rem; margin-bottom: 14px; }
.why-card h3 { font-size: 1.1rem; margin-bottom: 8px; font-weight: 600; }
.why-card p { color: var(--text-secondary); font-size: 0.95rem; }

.faq-section { padding: 60px 0; }
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 12px;
    transition: border-color var(--transition);
}
.faq-item[open] { border-color: var(--accent); }
.faq-item summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 1.05rem;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-primary);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--accent);
    transition: transform var(--transition);
    line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { margin-top: 14px; color: var(--text-secondary); line-height: 1.7; }

.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
    margin-top: 60px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 14px;
    max-width: 340px;
    line-height: 1.7;
}
.site-footer h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
    letter-spacing: 0.03em;
    text-transform: uppercase;
}
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: color var(--transition);
}
.site-footer ul a:hover { color: var(--accent); }
.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.tool-card { animation: fadeInUp 0.5s ease backwards; }
.tool-card:nth-child(1) { animation-delay: 0.05s; }
.tool-card:nth-child(2) { animation-delay: 0.1s; }
.tool-card:nth-child(3) { animation-delay: 0.15s; }
.tool-card:nth-child(4) { animation-delay: 0.2s; }
.tool-card:nth-child(5) { animation-delay: 0.25s; }
.tool-card:nth-child(6) { animation-delay: 0.3s; }
.tool-card:nth-child(7) { animation-delay: 0.35s; }
.tool-card:nth-child(8) { animation-delay: 0.4s; }
.tool-card:nth-child(9) { animation-delay: 0.45s; }

@media (max-width: 768px) {
    .main-nav { display: none; }
    .header-inner { height: 60px; }
    .hero { padding: 60px 0 50px; }
    .tools-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .container { padding: 0 18px; }
}

@media (max-width: 480px) {
    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
        width: 100%;
        justify-content: center;
    }
    .hero-actions { flex-direction: column; align-items: stretch; }
}

/* Footer - Our Projects */
.footer-projects {
    padding: 22px 0 4px;
    margin-top: 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}
.footer-projects p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin: 0;
    line-height: 1.8;
}
.footer-projects strong {
    color: var(--text-primary);
    font-weight: 600;
    margin-right: 8px;
}
.footer-projects a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.25s ease;
}
.footer-projects a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}
@media (max-width: 640px) {
    .footer-projects p { font-size: 0.85rem; }
}