/* ===== CSS Variables & Reset ===== */
:root {
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --secondary: #0EA5E9;
    --accent: #22C55E;
    --bg: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-dark: #0F172A;
    --bg-card-dark: #1E293B;
    --text: #111827;
    --text-secondary: #64748B;
    --text-dark: #F1F5F9;
    --text-dark-secondary: #94A3B8;
    --border: #E2E8F0;
    --border-dark: #334155;
    --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,.1);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-full: 9999px;
    --transition: all .3s cubic-bezier(.4,0,.2,1);
    --font: 'Inter', sans-serif;
    --max-width: 1280px;
    --header-h: 72px;
}

[data-theme="dark"] {
    --bg: var(--bg-dark);
    --bg-card: var(--bg-card-dark);
    --text: var(--text-dark);
    --text-secondary: var(--text-dark-secondary);
    --border: var(--border-dark);
    --shadow: 0 1px 3px rgba(0,0,0,.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,.3);
    --shadow-lg: 0 10px 25px rgba(0,0,0,.4);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    transition: background .3s, color .3s;
    overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul { list-style: none; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* ===== Header ===== */
.site-header {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255,255,255,.85);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    height: var(--header-h);
    transition: var(--transition);
}
[data-theme="dark"] .site-header { background: rgba(15,23,42,.85); }

.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: var(--header-h); max-width: var(--max-width); margin: 0 auto; padding: 0 20px;
    position: relative;
}
.logo { display: flex; align-items: center; gap: 8px; font-size: 1.5rem; font-weight: 800; color: var(--text); }
.logo span { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.logo svg { width: 32px; height: 32px; }

.nav-menu { display: flex; align-items: center; gap: 4px; flex-wrap: nowrap; }
.nav-menu a {
    padding: 8px 16px; border-radius: var(--radius-sm); color: var(--text-secondary);
    font-weight: 500; font-size: .9rem; transition: var(--transition);
    white-space: nowrap;
}
.nav-menu a:hover, .nav-menu a.active { color: var(--primary); background: rgba(37,99,235,.08); }

.header-actions { display: flex; align-items: center; gap: 8px; }
.header-search {
    position: relative; display: flex; align-items: center;
}
.header-search input {
    width: 220px; padding: 8px 36px 8px 14px; border: 1px solid var(--border);
    border-radius: var(--radius-full); background: var(--bg); color: var(--text);
    font-size: .875rem; transition: var(--transition); outline: none;
}
.header-search input:focus { border-color: var(--primary); width: 280px; box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.header-search .search-icon {
    position: absolute; right: 10px; color: var(--text-secondary); pointer-events: none;
}

.theme-toggle {
    width: 40px; height: 40px; border: 1px solid var(--border); border-radius: var(--radius-sm);
    background: var(--bg); color: var(--text); cursor: pointer; display: flex;
    align-items: center; justify-content: center; transition: var(--transition); font-size: 1.1rem;
}
.theme-toggle:hover { border-color: var(--primary); color: var(--primary); }

.mobile-toggle {
    display: none; width: 40px; height: 40px; border: none; background: none;
    cursor: pointer; color: var(--text); font-size: 1.3rem;
}

/* Nav Dropdown (Mega Menu Style) */
.nav-dropdown-wrapper { position: relative; display: inline-block; }
.nav-dropdown-toggle { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; padding-bottom: 24px; margin-bottom: -24px; }
.nav-dropdown-menu {
    position: absolute; top: calc(100% + 15px); left: 50%; transform: translateX(-50%) translateY(10px);
    background: #ffffff; border: 1px solid var(--border); border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.08); min-width: 300px; padding: 24px;
    opacity: 0; visibility: hidden; pointer-events: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); z-index: 9999;
}
[data-theme="dark"] .nav-dropdown-menu { background: #1e293b; border-color: #334155; box-shadow: 0 20px 40px rgba(0,0,0,0.4); }
.nav-dropdown-menu.mega-menu { display: block; width: max-content; min-width: 460px; max-width: 520px; }
.nav-dropdown-menu.mega-menu > div { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px 12px; }
.nav-dropdown-menu:not(.mega-menu) { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px 16px; min-width: 420px; }
.nav-dropdown-wrapper:hover .nav-dropdown-menu { opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(-50%) translateY(0); }
.nav-dropdown-menu::before {
    content: ''; position: absolute; top: -7px; left: 50%; transform: translateX(-50%) rotate(45deg);
    width: 14px; height: 14px; background: #ffffff; border-top: 1px solid var(--border); border-left: 1px solid var(--border);
}
[data-theme="dark"] .nav-dropdown-menu::before { background: #1e293b; border-color: #334155; }
.nav-dropdown-menu a {
    display: flex !important; align-items: center; gap: 16px; padding: 12px 16px !important;
    color: var(--text) !important; border-radius: 10px; font-size: 0.95rem !important;
    transition: all 0.2s ease; text-decoration: none; font-weight: 600;
}
.nav-dropdown-menu a:hover { background: rgba(37,99,235,0.06) !important; color: var(--primary) !important; transform: translateX(4px); }
.nav-dropdown-menu .dropdown-icon {
    display: flex; align-items: center; justify-content: center; width: 40px; height: 40px;
    background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(14,165,233,0.1));
    border-radius: 10px; color: var(--primary); flex-shrink: 0;
}
[data-theme="dark"] .nav-dropdown-menu .dropdown-icon { background: linear-gradient(135deg, rgba(37,99,235,0.2), rgba(14,165,233,0.2)); }
.nav-dropdown-menu .dropdown-icon svg { width: 22px !important; height: 22px !important; max-width: 22px; stroke: currentColor; fill: none; stroke-width: 2; }

/* All Tools Mega Menu */
.nav-dropdown-wrapper.has-mega-menu {
    position: static;
}

.nav-dropdown-menu.all-tools-mega-menu {
    position: absolute;
    top: 100%;
    left: 20px;
    right: 20px;
    width: auto;
    max-width: none;
    display: grid !important;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    padding: 28px 24px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
    transform: translateY(10px);
    overflow: visible;
}

.nav-dropdown-menu.all-tools-mega-menu::before {
    display: none;
}

.nav-dropdown-wrapper:hover .nav-dropdown-menu.all-tools-mega-menu {
    transform: translateY(0);
}

.all-tools-col {
    padding: 0;
    border-right: none;
}

/* Category header row */
.atc-header {
    display: flex !important;
    align-items: center;
    gap: 10px;
    font-size: .9rem !important;
    font-weight: 700 !important;
    color: var(--text) !important;
    margin-bottom: 16px !important;
    padding-bottom: 12px !important;
    border-bottom: 2px solid transparent !important;
    border-image: linear-gradient(90deg, var(--c1), var(--c2)) 1 !important;
}

.atc-cat-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; border-radius: 8px; font-size: 1rem;
    background: linear-gradient(135deg, var(--c1), var(--c2));
    color: #ffffff;
    flex-shrink: 0;
}

/* Tool link rows */
.atc-tool-link {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    padding: 8px 12px !important;
    border-radius: 8px !important;
    margin-bottom: 4px !important;
    color: var(--text-secondary) !important;
    font-size: .85rem !important;
    font-weight: 500 !important;
    transition: all .2s cubic-bezier(0.4, 0, 0.2, 1) !important;
    text-decoration: none !important;
    position: relative;
    white-space: normal !important;
}

.atc-tool-name {
    flex: 1;
    white-space: normal !important;
    line-height: 1.3;
}

.atc-tool-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 28px; height: 28px; border-radius: 7px;
    font-size: .85rem; flex-shrink: 0;
    background: color-mix(in srgb, var(--c1) 12%, transparent);
    color: var(--c1);
    transition: all .2s ease;
}

.atc-arrow {
    opacity: 0; font-size: .8rem;
    transition: opacity .15s, transform .15s;
    transform: translateX(-4px);
    color: var(--c1);
}

.atc-tool-link:hover {
    background: color-mix(in srgb, var(--c1) 8%, transparent) !important;
    color: var(--text) !important;
    transform: translateX(3px) !important;
}

.atc-tool-link:hover .atc-tool-icon {
    background: var(--c1);
    color: #ffffff;
    transform: scale(1.05);
}

.atc-tool-link:hover .atc-arrow {
    opacity: 1; transform: translateX(0);
}



/* Mobile nav */
.mobile-nav {
    display: none; position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: var(--bg); z-index: 999; padding: 20px;
    animation: slideDown .3s ease;
}
.mobile-nav.active { display: block; }
.mobile-nav a {
    display: block; padding: 14px 16px; color: var(--text); font-weight: 500;
    border-radius: var(--radius-sm); margin-bottom: 4px; font-size: 1rem;
}
.mobile-nav a:hover { background: rgba(37,99,235,.08); color: var(--primary); }

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

/* Search dropdown */
.search-results-dropdown {
    position: absolute; top: 100%; left: 0; right: 0; margin-top: 8px;
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow-lg); max-height: 400px; overflow-y: auto; display: none; z-index: 100;
    min-width: 320px;
}
.search-results-dropdown.active { display: block; }
.search-result-item {
    display: flex; align-items: center; gap: 12px; padding: 12px 16px;
    border-bottom: 1px solid var(--border); cursor: pointer; transition: var(--transition);
}
.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: rgba(37,99,235,.05); }
.search-result-item .sri-icon { font-size: 1.5rem; width: 40px; text-align: center; }
.search-result-item .sri-info h4 { font-size: .9rem; font-weight: 600; }
.search-result-item .sri-info p { font-size: .8rem; color: var(--text-secondary); }

/* ===== Hero Section ===== */
.hero {
    padding: 80px 0 60px; text-align: center;
    background: linear-gradient(135deg, rgba(37,99,235,.05) 0%, rgba(14,165,233,.05) 50%, rgba(34,197,94,.05) 100%);
    position: relative; overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(37,99,235,.06) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(14,165,233,.06) 0%, transparent 50%);
    animation: heroFloat 20s ease-in-out infinite;
}
@keyframes heroFloat { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-20px, -10px); } }

.hero-content { position: relative; z-index: 1; }
.hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; line-height: 1.2; margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text) 0%, var(--primary) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero p { font-size: 1.15rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto 32px; }

.hero-search {
    max-width: 560px; margin: 0 auto 24px; position: relative;
}
.hero-search input {
    width: 100%; padding: 16px 60px 16px 24px; border: 2px solid var(--border);
    border-radius: var(--radius-full); font-size: 1rem; background: var(--bg-card);
    color: var(--text); outline: none; transition: var(--transition);
    box-shadow: var(--shadow-md);
}
.hero-search input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(37,99,235,.15); }
.hero-search button {
    position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
    width: 44px; height: 44px; border: none; border-radius: 50%;
    background: var(--primary); color: #fff; cursor: pointer; font-size: 1.1rem;
    transition: var(--transition);
}
.hero-search button:hover { background: var(--primary-dark); transform: translateY(-50%) scale(1.05); }

.hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 20px; }
.hero-tags a {
    padding: 6px 14px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-full); font-size: .8rem; color: var(--text-secondary);
    transition: var(--transition);
}
.hero-tags a:hover { border-color: var(--primary); color: var(--primary); background: rgba(37,99,235,.05); }

/* ===== Section Styles ===== */
.section { padding: 60px 0; }
.section-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 32px; flex-wrap: wrap; gap: 12px;
}
.section-header h2 { font-size: 1.75rem; font-weight: 700; }
.section-header .view-all {
    padding: 8px 20px; border: 1px solid var(--border); border-radius: var(--radius-full);
    color: var(--text-secondary); font-size: .875rem; font-weight: 500; transition: var(--transition);
}
.section-header .view-all:hover { border-color: var(--primary); color: var(--primary); }

/* ===== Tool Cards Grid ===== */
.tools-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.tool-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    border-radius: var(--radius);
    padding: 24px; transition: var(--transition); position: relative; overflow: hidden; cursor: pointer;
    z-index: 2;
}
[data-theme="dark"] .tool-card {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}
.tool-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0); transition: transform .3s ease; transform-origin: left; z-index: 3;
}
.tool-card:hover { 
    transform: translateY(-4px); 
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.15); 
    border-color: rgba(255, 255, 255, 0.5); 
    background: rgba(255, 255, 255, 0.8); 
}
[data-theme="dark"] .tool-card:hover {
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.5); 
    border-color: rgba(255, 255, 255, 0.15); 
    background: rgba(15, 23, 42, 0.6);
}
.tool-card:hover::before { transform: scaleX(1); }

.tool-card .tc-icon {
    width: 48px; height: 48px; border-radius: var(--radius-sm);
    background: linear-gradient(135deg, rgba(37,99,235,.1), rgba(14,165,233,.1));
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; margin-bottom: 16px;
}
.tc-img-wrap {
    width: 72px; height: 72px; border-radius: 16px; overflow: hidden;
    margin-bottom: 16px; box-shadow: 0 6px 20px rgba(0,0,0,.13);
    transition: var(--transition); flex-shrink: 0;
}
.tc-img-wrap img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transition: transform .35s ease;
}
.tool-card:hover .tc-img-wrap { box-shadow: 0 10px 28px rgba(0,0,0,.2); }
.tool-card:hover .tc-img-wrap img { transform: scale(1.1); }
.tool-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.tool-card p { font-size: .85rem; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.5; }
.tool-card .tc-btn {
    display: inline-flex; align-items: center; gap: 6px; padding: 8px 18px;
    background: var(--primary); color: #fff; border-radius: var(--radius-sm);
    font-size: .85rem; font-weight: 500; transition: var(--transition);
}
.tool-card .tc-btn::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 10;
}
.tool-card:hover .tc-btn { background: var(--primary-dark); color: #fff; }

/* ===== Categories Section ===== */
.categories-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.category-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    border-radius: var(--radius);
    padding: 28px; text-align: center; transition: var(--transition); cursor: pointer; position: relative; overflow: hidden;
    z-index: 2;
}
[data-theme="dark"] .category-card {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}
.category-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0); transition: transform .3s ease; transform-origin: left; z-index: 3;
}
.category-card:hover { 
    transform: translateY(-4px); 
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.15); 
    border-color: rgba(255, 255, 255, 0.5); 
    background: rgba(255, 255, 255, 0.8); 
}
[data-theme="dark"] .category-card:hover {
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.5); 
    border-color: rgba(255, 255, 255, 0.15); 
    background: rgba(15, 23, 42, 0.6);
}
.category-card:hover::before { transform: scaleX(1); }
.category-card .cc-icon { font-size: 2.5rem; margin-bottom: 12px; }
.cc-img-wrap {
    width: 90px; height: 90px; margin: 0 auto 16px;
    border-radius: 20px; overflow: hidden;
    box-shadow: 0 8px 24px rgba(0,0,0,.12);
    transition: var(--transition);
}
.cc-img-wrap img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transition: transform .4s ease;
}
.category-card:hover .cc-img-wrap { box-shadow: 0 12px 32px rgba(0,0,0,.18); }
.category-card:hover .cc-img-wrap img { transform: scale(1.08); }
.category-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
.category-card p { font-size: .85rem; color: var(--text-secondary); margin-bottom: 12px; }
.category-card .cc-count {
    display: inline-block; padding: 4px 12px; background: rgba(37,99,235,.08);
    color: var(--primary); border-radius: var(--radius-full); font-size: .8rem; font-weight: 500;
}

/* ===== Tool Page ===== */
.tool-page { padding: 40px 0; }
.tool-page-header { margin-bottom: 32px; }
.tool-page-header h1 { font-size: 2rem; font-weight: 700; margin-bottom: 8px; }
.tool-page-header p { color: var(--text-secondary); font-size: 1.05rem; }

.tool-interface {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    border-radius: var(--radius);
    padding: 32px; margin-bottom: 32px; position: relative; overflow: hidden; transition: var(--transition);
    z-index: 2;
}
[data-theme="dark"] .tool-interface {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}
.tool-interface::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0); transition: transform .3s ease; transform-origin: left; z-index: 3;
}
.tool-interface:hover { 
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.15); 
    border-color: rgba(255, 255, 255, 0.5); 
    background: rgba(255, 255, 255, 0.8); 
}
[data-theme="dark"] .tool-interface:hover {
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.5); 
    border-color: rgba(255, 255, 255, 0.15); 
    background: rgba(15, 23, 42, 0.6);
}
.tool-interface:hover::before { transform: scaleX(1); }

.tool-upload-area {
    border: 2px dashed var(--border); border-radius: var(--radius); padding: 48px;
    text-align: center; cursor: pointer; transition: var(--transition);
}
.tool-upload-area:hover { border-color: var(--primary); background: rgba(37,99,235,.03); }
.tool-upload-area .upload-icon { font-size: 3rem; margin-bottom: 12px; color: var(--primary); }
.tool-upload-area h3 { font-size: 1.1rem; margin-bottom: 4px; }
.tool-upload-area p { font-size: .85rem; color: var(--text-secondary); }

.tool-textarea {
    width: 100%; min-height: 200px; padding: 16px; border: 1px solid var(--border);
    border-radius: var(--radius-sm); background: var(--bg); color: var(--text);
    font-family: inherit; font-size: .95rem; resize: vertical; outline: none;
    transition: var(--transition);
}
.tool-textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }

.tool-result {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    border-radius: var(--radius);
    padding: 24px; margin-top: 20px; position: relative; overflow: hidden; transition: var(--transition);
    z-index: 2;
}
[data-theme="dark"] .tool-result {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}
.tool-result::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0); transition: transform .3s ease; transform-origin: left; z-index: 3;
}
.tool-result:hover { 
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.15); 
    border-color: rgba(255, 255, 255, 0.5); 
    background: rgba(255, 255, 255, 0.8); 
}
[data-theme="dark"] .tool-result:hover {
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.5); 
    border-color: rgba(255, 255, 255, 0.15); 
    background: rgba(15, 23, 42, 0.6);
}
.tool-result:hover::before { transform: scaleX(1); }
.tool-result h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 16px; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px;
    border: none; border-radius: var(--radius-sm); font-weight: 600; font-size: .9rem;
    cursor: pointer; transition: var(--transition); text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn-secondary:hover { background: var(--primary); color: #fff; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #16A34A; color: #fff; }
.btn-danger { background: #EF4444; color: #fff; }
.btn-danger:hover { background: #DC2626; color: #fff; }
.btn-sm { padding: 8px 16px; font-size: .8rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }

/* ===== Newsletter ===== */
.newsletter {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius);
    padding: 48px 40px;
    text-align: center;
    color: #fff;
    margin: 40px 0;
    box-shadow: var(--shadow-md);
}
.newsletter-icon-container {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    margin-bottom: 18px;
    color: #fff;
}
.newsletter-icon-container svg {
    display: block;
    width: 28px;
    height: 28px;
}
.newsletter h2 {
    font-size: 1.65rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #fff;
}
.newsletter p {
    font-size: 0.95rem;
    opacity: 0.9;
    margin-bottom: 24px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}
.newsletter-form-wrap {
    max-width: 480px;
    margin: 0 auto;
}
.newsletter-form {
    display: flex;
    gap: 12px;
}
.newsletter-form input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    outline: none;
    background: #fff;
    color: var(--text);
    transition: var(--transition);
}
.newsletter-form input:focus {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.35);
}
.newsletter-form button {
    padding: 12px 28px;
    background: #fff;
    color: var(--primary);
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
}
.newsletter-form button:hover {
    background: #f8fafc;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.newsletter-form button:active {
    transform: translateY(0);
}
.newsletter-message {
    margin-top: 14px;
    font-size: 0.9rem;
    font-weight: 600;
    opacity: 0;
    transform: translateY(4px);
    transition: var(--transition);
    display: none;
}
.newsletter-message.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}
.newsletter-message.success {
    color: #4ade80;
}
.newsletter-message.error {
    color: #fca5a5;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-card); border-top: 1px solid var(--border); padding: 48px 0 24px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { color: var(--text-secondary); font-size: .9rem; margin-top: 12px; line-height: 1.6; }
.footer-col h4 { font-size: .9rem; font-weight: 600; margin-bottom: 16px; text-transform: uppercase; letter-spacing: .05em; }
.footer-col a { display: block; color: var(--text-secondary); font-size: .875rem; padding: 4px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
    padding-top: 24px; border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { font-size: .85rem; color: var(--text-secondary); }

/* ===== Breadcrumb ===== */
.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding: 16px 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    list-style: none;
}
.breadcrumb li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.breadcrumb li::after {
    display: none !important;
    content: none !important;
}
.breadcrumb a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}
.breadcrumb a:hover {
    color: var(--primary);
}
.breadcrumb span {
    color: var(--text);
    font-weight: 500;
}

/* ===== FAQ ===== */
.faq-item {
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    margin-bottom: 8px; overflow: hidden;
}
.faq-question {
    width: 100%; padding: 16px 20px; background: none; border: none; color: var(--text);
    font-size: .95rem; font-weight: 600; cursor: pointer; display: flex;
    justify-content: space-between; align-items: center; text-align: left;
}
.faq-question::after { content: '+'; font-size: 1.2rem; transition: var(--transition); }
.faq-item.active .faq-question::after { content: '−'; }
.faq-answer { padding: 0 20px; max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-item.active .faq-answer { max-height: 500px; padding-bottom: 16px; }
.faq-answer p { color: var(--text-secondary); font-size: .9rem; line-height: 1.7; }

/* ===== Ad Zones ===== */
.ad-zone { text-align: center; margin: 20px 0; }
.ad-zone img { max-width: 100%; border-radius: var(--radius-sm); }

/* ===== Static Page ===== */
.static-page { padding: 40px 0; max-width: 800px; margin: 0 auto; }
.static-page h1 { font-size: 2rem; margin-bottom: 24px; }
.page-content { line-height: 1.8; font-size: 1rem; }
.page-content h2 { margin: 24px 0 12px; font-size: 1.5rem; }
.page-content h3 { margin: 20px 0 10px; font-size: 1.2rem; }
.page-content p { margin-bottom: 16px; }
.page-content ul, .page-content ol { margin: 12px 0; padding-left: 24px; }
.page-content li { margin-bottom: 8px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .tools-grid { grid-template-columns: repeat(2, 1fr); }
    .categories-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .nav-menu { display: none; }
    .mobile-toggle { display: flex; align-items: center; justify-content: center; }
    .header-search input { width: 160px; }
    .header-search input:focus { width: 200px; }
    .hero { padding: 50px 0 40px; }
    .hero h1 { font-size: 1.8rem; }
    .hero p { font-size: 1rem; }
    .tools-grid { grid-template-columns: 1fr; }
    .categories-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .newsletter { padding: 40px 24px; }
    .section { padding: 40px 0; }
}
@media (max-width: 576px) {
    .newsletter-form {
        flex-direction: column;
        border-radius: 16px;
        background: transparent;
        border: none;
        box-shadow: none;
        padding: 0;
        gap: 12px;
    }
    .newsletter-form input {
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 14px 20px;
    }
    [data-theme="dark"] .newsletter-form input {
        background: var(--bg-card-dark);
        border-color: var(--border-dark);
    }
    .newsletter-form button {
        width: 100%;
        border-radius: 12px;
        padding: 14px 20px;
    }
}
@media (max-width: 480px) {
    .header-search { display: none; }
    .hero-search input { padding: 14px 50px 14px 18px; font-size: .9rem; }
}

/* ===== Loading Spinner ===== */
.spinner { width: 40px; height: 40px; border: 3px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin .8s linear infinite; margin: 20px auto; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Search Results Page ===== */
.search-results-page { padding-top: 32px; }

.search-hero-bar {
    margin-bottom: 24px;
}
.search-hero-form {
    display: flex; align-items: center; gap: 0;
    background: var(--bg-card); border: 2px solid var(--border);
    border-radius: var(--radius-full); padding: 6px 6px 6px 20px;
    box-shadow: var(--shadow-md); transition: var(--transition);
    max-width: 680px;
}
.search-hero-form:focus-within { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(37,99,235,.12); }
.sh-icon { font-size: 1.1rem; color: var(--text-secondary); flex-shrink: 0; }
.search-hero-form input {
    flex: 1; border: none; background: transparent; outline: none;
    font-size: 1rem; color: var(--text); padding: 8px 14px;
}
.sh-btn {
    padding: 10px 24px; background: var(--primary); color: #fff;
    border: none; border-radius: var(--radius-full); font-weight: 600;
    font-size: .9rem; cursor: pointer; transition: var(--transition); flex-shrink: 0;
}
.sh-btn:hover { background: var(--primary-dark); }

.search-meta {
    font-size: .95rem; color: var(--text-secondary); margin-bottom: 20px;
}
.search-meta strong { color: var(--text); }
.search-query-tag {
    display: inline-block; background: rgba(37,99,235,.1); color: var(--primary);
    padding: 2px 10px; border-radius: var(--radius-full); font-weight: 600;
}

/* Filter Tabs */
.search-filters {
    display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px;
}
.filter-tab {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 16px; border-radius: var(--radius-full);
    border: 1px solid var(--border); background: var(--bg-card);
    color: var(--text-secondary); font-size: .85rem; font-weight: 500;
    cursor: pointer; transition: var(--transition); text-decoration: none;
}
.filter-tab:hover { border-color: var(--primary); color: var(--primary); background: rgba(37,99,235,.05); }
.filter-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.filter-tab.active:hover { background: var(--primary-dark); color: #fff; }
.filter-count {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 20px; height: 20px; padding: 0 6px;
    background: rgba(255,255,255,.25); border-radius: 999px;
    font-size: .72rem; font-weight: 700;
}
.filter-tab:not(.active) .filter-count {
    background: rgba(37,99,235,.1); color: var(--primary);
}

/* Category label on tool card in search */
.tc-cat-label {
    font-size: .72rem; font-weight: 600; color: var(--primary);
    text-transform: uppercase; letter-spacing: .06em;
    margin-bottom: 6px; opacity: .8;
}

/* No results */
.search-empty {
    text-align: center; padding: 64px 20px;
}

/* ===== Floating Background Icons ===== */
.bg-floating-icons {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 0; overflow: hidden;
}
.float-icon {
    position: absolute; font-size: 2rem; opacity: 0.1;
    animation: floatAnim 15s infinite linear;
    filter: blur(2px);
}
[data-theme="dark"] .float-icon { opacity: 0.15; }

.float-icon:nth-child(1) { top: 10%; left: 10%; font-size: 4rem; animation-duration: 20s; }
.float-icon:nth-child(2) { top: 20%; right: 15%; font-size: 3rem; animation-duration: 18s; animation-direction: reverse; }
.float-icon:nth-child(3) { top: 70%; left: 15%; font-size: 5rem; animation-duration: 25s; }
.float-icon:nth-child(4) { top: 80%; right: 10%; font-size: 4.5rem; animation-duration: 22s; animation-direction: reverse; }
.float-icon:nth-child(5) { top: 40%; left: 5%; font-size: 2.5rem; animation-duration: 15s; }
.float-icon:nth-child(6) { top: 50%; right: 5%; font-size: 3.5rem; animation-duration: 19s; }

@keyframes floatAnim {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-40px) rotate(180deg); }
    100% { transform: translateY(0) rotate(360deg); }
}
}
.search-empty-icon {
    font-size: 4rem; margin-bottom: 16px;
    filter: grayscale(1); opacity: .4;
}
.search-empty h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 12px; }
.search-empty p { color: var(--text-secondary); max-width: 480px; margin: 0 auto 28px; line-height: 1.7; }
.search-empty-cats {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: 20px;
}


/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.gap-1 { gap: 8px; } .gap-2 { gap: 16px; }
.flex { display: flex; } .flex-wrap { flex-wrap: wrap; } .items-center { align-items: center; } .justify-between { justify-content: space-between; }
.hidden { display: none !important; }
.badge {
    display: inline-block; padding: 3px 10px; border-radius: var(--radius-full);
    font-size: .75rem; font-weight: 600;
}
.badge-primary { background: rgba(37,99,235,.1); color: var(--primary); }
.badge-accent { background: rgba(34,197,94,.1); color: var(--accent); }

/* ===== FAQ Section (AEO/GEO Optimized) ===== */
.faq-section {
    margin-top: 40px;
    padding: 36px 40px;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}
.faq-section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border);
}
.faq-section-icon {
    width: 44px; height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}
.faq-section-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text);
    margin: 0;
}
.faq-section-subtitle {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin: 2px 0 0;
}
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: border-color .25s, box-shadow .25s;
    background: var(--bg);
}
.faq-item:hover {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.07);
}
.faq-item.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.09);
}
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 0.975rem;
    font-weight: 600;
    color: var(--text);
    transition: color .2s;
    line-height: 1.45;
}
.faq-question:hover { color: var(--primary); }
.faq-item.active .faq-question { color: var(--primary); }
.faq-q-text { flex: 1; }
.faq-chevron {
    width: 22px; height: 22px;
    flex-shrink: 0;
    border-radius: 50%;
    background: rgba(37,99,235,.08);
    display: flex; align-items: center; justify-content: center;
    transition: transform .3s cubic-bezier(.4,0,.2,1), background .2s;
    font-style: normal;
    font-size: 0.8rem;
    color: var(--primary);
}
.faq-item.active .faq-chevron {
    transform: rotate(180deg);
    background: var(--primary);
    color: #fff;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .38s cubic-bezier(.4,0,.2,1), padding .3s;
    padding: 0 22px;
}
.faq-item.active .faq-answer {
    max-height: 600px;
    padding: 0 22px 18px;
}
.faq-answer p {
    color: var(--text-secondary);
    font-size: 0.93rem;
    line-height: 1.75;
    margin: 0;
    padding-top: 2px;
    border-top: 1px solid var(--border);
    padding-top: 14px;
}
.faq-answer a { color: var(--primary); text-decoration: underline; }
.faq-count-badge {
    display: inline-flex; align-items: center;
    background: rgba(37,99,235,.1); color: var(--primary);
    padding: 2px 10px; border-radius: var(--radius-full);
    font-size: 0.78rem; font-weight: 600; margin-left: auto;
}

/* FAQ Schema notice (visually hidden, screen-reader accessible) */
.faq-schema-note { display: none; }

@media(max-width: 640px) {
    .faq-section { padding: 24px 18px; }
    .faq-question { padding: 15px 16px; font-size: .9rem; }
    .faq-answer { padding: 0 16px; }
    .faq-item.active .faq-answer { padding: 0 16px 14px; }
}

/* ===== Skeleton Loading (AEO/GEO & UX Optimized) ===== */
.skeleton-container {
    padding: 40px 20px;
    margin-top: 20px;
    animation: fadeIn 0.25s ease-in-out;
}
.skeleton-shimmer {
    background: linear-gradient(90deg, var(--border) 25%, rgba(226, 232, 240, 0.65) 37%, var(--border) 63%);
    background-size: 400% 100%;
    animation: skeleton-loading 1.4s ease infinite;
    border-radius: var(--radius-sm);
}
[data-theme="dark"] .skeleton-shimmer {
    background: linear-gradient(90deg, var(--border-dark) 25%, rgba(51, 65, 85, 0.65) 37%, var(--border-dark) 63%);
    background-size: 400% 100%;
}
@keyframes skeleton-loading {
    0% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.skeleton-breadcrumb {
    width: 160px;
    height: 18px;
    margin-bottom: 24px;
}
.skeleton-title {
    width: 340px;
    height: 40px;
    margin-bottom: 12px;
}
.skeleton-subtitle {
    width: 520px;
    height: 16px;
    margin-bottom: 40px;
    max-width: 100%;
}
.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}
.skeleton-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    box-shadow: var(--shadow);
}
.skeleton-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    margin-bottom: 6px;
}
.skeleton-line {
    height: 14px;
    border-radius: 4px;
}
.skeleton-btn {
    height: 38px;
    border-radius: var(--radius-sm);
    margin-top: 10px;
    width: 100%;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Scroll Progress Bar (Theme Match) ===== */
.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4.5px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    z-index: 99999;
    transition: width 0.08s ease-out;
    border-top-right-radius: 3px;
    border-bottom-right-radius: 3px;
    box-shadow: 0 1px 8px rgba(37, 99, 235, 0.35);
}