/* ============================================================
   NYXBO — Premium Digital Tools Platform
   Fully responsive, mobile‑first hamburger, dark/light themes
   ============================================================ */

/* ---------- VARIABLES ---------- */
:root,
[data-theme="dark"] {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161f;
    --bg-glass: rgba(22, 22, 31, 0.7);
    --bg-input: #1a1a25;
    --border-color: #22222d;
    --border-light: #2a2a38;
    --text-primary: #f0f0f5;
    --text-secondary: #c0c0d0;
    --text-muted: #808090;
    --accent: #6C5CE7;
    --accent-hover: #7D6FF0;
    --accent-glow: rgba(108, 92, 231, 0.3);
    --accent-gradient: linear-gradient(135deg, #6C5CE7, #a78bfa);
    --gradient-text: linear-gradient(135deg, #c4b5fd, #6C5CE7);
    --success: #34d399;
    --warning: #fbbf24;
    --error: #f87171;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(108, 92, 231, 0.25);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50px;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-smooth: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
    --navbar-height: 64px;
}

[data-theme="light"] {
    --bg-primary: #f8f9fc;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.75);
    --bg-input: #f1f3f8;
    --border-color: #e2e4ea;
    --border-light: #eef0f5;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a60;
    --text-muted: #8888a0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);
    --shadow-glow: 0 0 30px rgba(108, 92, 231, 0.18);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.65;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-base), color var(--transition-base);
}

img,
svg {
    display: block;
    max-width: 100%;
}

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

button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    background: none;
    color: inherit;
}

ul,
ol {
    list-style: none;
}

/* ---------- SKIP LINK ---------- */
.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: var(--accent);
    color: #fff;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 999;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 12px;
}

/* ---------- CONTAINER ---------- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- NAVBAR ---------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    height: var(--navbar-height);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
    z-index: 101;
    color: var(--text-primary);
}

.logo-icon {
    color: var(--accent);
    transition: transform var(--transition-base);
}

.nav-logo:hover .logo-icon {
    transform: rotate(-8deg) scale(1.05);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: var(--border-light);
}

.nav-link.active {
    color: var(--accent);
    background: var(--accent-glow);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    z-index: 101;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.theme-toggle:hover {
    background: var(--border-light);
    color: var(--text-primary);
}

[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }
[data-theme="light"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: none; }

/* ---------- MOBILE MENU (hidden by default) ---------- */
.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
}

.hamburger-line {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

.mobile-menu-btn.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   HERO
   ============================================================ */
.hero-section {
    position: relative;
    padding: 80px 0 60px;
    overflow: hidden;
}

.hero-bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    pointer-events: none;
    animation: orbFloat 12s ease-in-out infinite;
}

.hero-orb-1 {
    width: 400px; height: 400px;
    background: var(--accent);
    top: -120px; right: -80px;
}
.hero-orb-2 {
    width: 300px; height: 300px;
    background: #a78bfa;
    bottom: -60px; left: -60px;
    animation-delay: -4s;
}
.hero-orb-3 {
    width: 200px; height: 200px;
    background: #f472b6;
    top: 40%; left: 50%;
    animation-delay: -8s;
    opacity: 0.15;
}

@keyframes orbFloat {
    0%,100% { transform: translate(0,0) scale(1); }
    25% { transform: translate(30px,-40px) scale(1.08); }
    50% { transform: translate(-20px,20px) scale(0.95); }
    75% { transform: translate(-35px,-25px) scale(1.05); }
}

.hero-container {
    position: relative; z-index: 2;
    display: flex; flex-direction: column;
    align-items: center; text-align: center;
    gap: 20px;
}

.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 18px; border-radius: var(--radius-full);
    font-size: 0.8rem; font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
}

.badge-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--success);
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%,100% { opacity:1; box-shadow: 0 0 0 0 rgba(52,211,153,0.5); }
    50% { opacity:0.6; box-shadow: 0 0 0 10px rgba(52,211,153,0); }
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800; line-height: 1.15;
    letter-spacing: -0.03em; max-width: 700px;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    color: var(--text-secondary);
    max-width: 580px; line-height: 1.7;
}

.hero-cta {
    display: flex; flex-wrap: wrap;
    gap: 12px; justify-content: center;
}

.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 24px; border-radius: var(--radius-full);
    font-weight: 600; font-size: 0.95rem;
    transition: all var(--transition-base); white-space: nowrap;
}

.btn-primary {
    background: var(--accent); color: #fff;
    box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(108,92,231,0.4);
}

.btn-outline {
    border: 2px solid var(--border-color);
    color: var(--text-primary); background: transparent;
}
.btn-outline:hover {
    border-color: var(--accent); color: var(--accent);
    background: var(--accent-glow);
}

.hero-stats {
    display: flex; flex-wrap: wrap;
    gap: 24px; justify-content: center;
    margin-top: 12px;
}

.stat-item {
    display: flex; flex-direction: column; align-items: center; gap: 2px;
    padding: 12px 20px; border-radius: var(--radius-md);
    background: var(--bg-glass); backdrop-filter: blur(8px);
    border: 1px solid var(--border-color); min-width: 100px;
}

.stat-number { font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 0.75rem; color: var(--text-muted); font-weight: 500; }

/* ---------- ANIMATIONS ---------- */
.animate-fade-in { opacity: 0; animation: fadeInUp 0.7s ease forwards; }
.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }
.delay-4 { animation-delay: 0.6s; }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   TOOLS SECTION
   ============================================================ */
.tools-section { padding: 60px 0 80px; }

.section-header { text-align: center; margin-bottom: 32px; }

.section-tag {
    display: inline-block;
    font-size: 0.78rem; font-weight: 600;
    color: var(--accent); background: var(--accent-glow);
    padding: 6px 16px; border-radius: var(--radius-full);
    margin-bottom: 12px; letter-spacing: 0.04em; text-transform: uppercase;
}

.section-title {
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    font-weight: 700; margin-bottom: 8px; letter-spacing: -0.02em;
}

.section-desc { color: var(--text-muted); font-size: 0.95rem; max-width: 480px; margin: 0 auto; }

.tools-controls { display: flex; flex-direction: column; gap: 16px; margin-bottom: 20px; }

.search-wrapper { position: relative; width: 100%; max-width: 500px; margin: 0 auto; }

.search-icon {
    position: absolute; left: 14px; top: 50%;
    transform: translateY(-50%); color: var(--text-muted); pointer-events: none;
}

.search-input {
    width: 100%; padding: 12px 40px 12px 42px;
    font-size: 0.9rem; font-family: var(--font-family);
    background: var(--bg-input); border: 2px solid var(--border-color);
    border-radius: var(--radius-full); color: var(--text-primary);
    transition: all var(--transition-base); outline: none;
}
.search-input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-glow); }
.search-input::placeholder { color: var(--text-muted); }

.search-clear {
    position: absolute; right: 12px; top: 50%;
    transform: translateY(-50%);
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--border-color); color: var(--text-muted);
    font-size: 0.75rem; display: flex; align-items: center; justify-content: center;
}
.search-clear:hover { background: var(--text-muted); color: var(--bg-primary); }

.category-filters {
    display: flex; flex-wrap: wrap; gap: 8px;
    justify-content: center; overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.category-filters::-webkit-scrollbar { display: none; }

.cat-filter {
    padding: 7px 16px; font-size: 0.8rem; font-weight: 500;
    border-radius: var(--radius-full);
    background: var(--bg-input); border: 1.5px solid var(--border-color);
    color: var(--text-secondary); transition: all var(--transition-fast);
    white-space: nowrap; flex-shrink: 0;
}
.cat-filter:hover { border-color: var(--accent); color: var(--accent); }
.cat-filter.active { background: var(--accent); color: #fff; border-color: var(--accent); box-shadow: var(--shadow-glow); }

.tools-count { text-align: center; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 16px; }

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.tool-card {
    display: flex; align-items: flex-start; gap: 14px;
    padding: 18px; border-radius: var(--radius-lg);
    background: var(--bg-card); border: 1px solid var(--border-color);
    transition: all var(--transition-base); cursor: pointer;
    text-decoration: none; color: inherit;
    position: relative; overflow: hidden;
}
.tool-card::before {
    content: ''; position: absolute; inset: 0;
    background: var(--accent-glow); opacity: 0;
    transition: opacity var(--transition-base); pointer-events: none;
    border-radius: inherit;
}
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.tool-card:hover::before { opacity: 1; }
.tool-card:active { transform: translateY(-2px); }

.tool-icon {
    font-size: 2rem; flex-shrink: 0;
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-md); background: var(--bg-input);
    transition: transform var(--transition-base);
    position: relative; z-index: 1;
}
.tool-card:hover .tool-icon { transform: scale(1.1); }

.tool-info { flex: 1; min-width: 0; position: relative; z-index: 1; }
.tool-info h4 {
    font-size: 0.95rem; font-weight: 600; margin-bottom: 4px;
    color: var(--text-primary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.tool-info p {
    font-size: 0.8rem; color: var(--text-muted); line-height: 1.45;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden; margin-bottom: 6px;
}

.tool-category {
    display: inline-block; font-size: 0.7rem; font-weight: 500;
    padding: 3px 10px; border-radius: var(--radius-full);
    background: var(--accent-glow); color: var(--accent);
    text-transform: uppercase; letter-spacing: 0.03em;
}

.glass-card { background: var(--bg-glass); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }

.tools-empty {
    display: flex; flex-direction: column; align-items: center;
    gap: 12px; padding: 48px 20px; color: var(--text-muted); text-align: center;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: var(--bg-secondary); border-top: 1px solid var(--border-color); padding: 48px 0 0; }

.footer-container {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px; padding-bottom: 32px;
}

.footer-brand p { color: var(--text-muted); font-size: 0.85rem; line-height: 1.6; margin-top: 12px; max-width: 280px; }

.footer-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; color: var(--text-primary); }
.footer-logo svg { color: var(--accent); }

.footer-col h4 { font-size: 0.85rem; font-weight: 600; margin-bottom: 14px; color: var(--text-primary); text-transform: uppercase; letter-spacing: 0.04em; }
.footer-col a { display: block; font-size: 0.85rem; color: var(--text-muted); padding: 6px 0; transition: all var(--transition-fast); }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }

.footer-bottom { border-top: 1px solid var(--border-color); padding: 18px 0; text-align: center; font-size: 0.8rem; color: var(--text-muted); }

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
    position: fixed; bottom: 24px; right: 24px;
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--accent); color: #fff;
    display: flex; align-items: center; justify-content: center;
    z-index: 90; opacity: 0; visibility: hidden;
    transform: translateY(12px); transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--accent-hover); transform: translateY(-4px); box-shadow: var(--shadow-glow); }

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
    .footer-container { grid-template-columns: 1fr 1fr; }
    .tools-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
    .hero-stats { gap: 16px; }
    .stat-item { padding: 10px 16px; min-width: 80px; }
}

/* Mobile (below 768px) */
@media (max-width: 768px) {
    /* Show hamburger, hide desktop nav */
    .mobile-menu-btn { display: flex; }

    .nav-links {
        position: fixed;
        top: var(--navbar-height);
        left: 0; right: 0; bottom: 0;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: flex-start;
        padding: 20px; gap: 4px;
        transform: translateX(100%);
        transition: transform var(--transition-smooth);
        z-index: 99;
        overflow-y: auto;
        border-top: 1px solid var(--border-color);
    }

    .nav-links.open { transform: translateX(0); }

    .nav-link {
        width: 100%;
        padding: 14px 16px;
        font-size: 1rem;
        border-radius: var(--radius-md);
    }

    .hero-section { padding: 48px 0 40px; }
    .hero-orb-1 { width: 250px; height: 250px; top: -60px; right: -40px; }
    .hero-orb-2 { width: 180px; height: 180px; bottom: -30px; left: -30px; }
    .hero-orb-3 { width: 120px; height: 120px; }

    .hero-stats { gap: 10px; }
    .stat-item { padding: 8px 12px; min-width: 70px; border-radius: var(--radius-sm); }
    .stat-number { font-size: 1.1rem; }
    .stat-label { font-size: 0.68rem; }

    .tools-grid { grid-template-columns: 1fr; gap: 12px; }

    .category-filters { justify-content: flex-start; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 8px; gap: 6px; }
    .cat-filter { padding: 6px 14px; font-size: 0.75rem; }

    .footer-container { grid-template-columns: 1fr; gap: 24px; }
    .footer-brand p { max-width: 100%; }

    .back-to-top { bottom: 16px; right: 16px; width: 40px; height: 40px; }
}

/* Small Mobile (below 400px) */
@media (max-width: 400px) {
    .nav-container { padding: 0 12px; }
    .nav-logo { font-size: 1rem; gap: 6px; }
    .logo-icon { width: 28px; height: 28px; }
    .container { padding: 0 14px; }
    .hero-title { font-size: 1.6rem; }
    .hero-subtitle { font-size: 0.85rem; }
    .hero-cta { flex-direction: column; width: 100%; }
    .btn { justify-content: center; width: 100%; }
    .hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; width: 100%; }
    .stat-item { min-width: auto; }
    .section-title { font-size: 1.4rem; }
    .tool-card { padding: 14px; gap: 10px; }
    .tool-icon { width: 40px; height: 40px; font-size: 1.5rem; }
    .tool-info h4 { font-size: 0.85rem; }
    .search-input { font-size: 0.85rem; padding: 10px 36px 10px 38px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    html { scroll-behavior: auto; }
}

/* Print */
@media print {
    .navbar, .back-to-top, .hero-bg-orb, .tools-controls, .footer { display: none !important; }
    body { background: #fff; color: #000; font-size: 14px; }
}