/* =========================================
   CSS RESET & VARIABLES
   ========================================= */
:root {
    color-scheme: light;

    /* Global Colors */
    --bg-main: #ffffff;
    --bg-light: #f8fafc;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --header-bg: rgba(255, 255, 255, 0.95);
    --feature-icon-bg: #eff6ff;
    --card-shadow: rgba(0, 0, 0, 0.1);

    /* Category Accent Colors */
    --cat-pdf: #ef4444;         /* Red */
    --cat-image: #b45309;       /* Amber-700 (darkened from #f59e0b for AA text contrast) */
    --cat-video: #8b5cf6;       /* Purple */
    --cat-programming: #10b981; /* Emerald */
    --cat-encode: #6366f1;      /* Indigo */
    --cat-write: #ec4899;       /* Pink */
    --cat-ai: #0ea5e9;          /* Sky Blue */

    /* Semantic / Toast Colors */
    --success: #16a34a;
    --error: #dc2626;
    --warning: #d97706;
    --info: #2563eb;

    /* Feature icon tints (light) */
    --feature-icon-bg-warning: #fff7ed;
    --feature-icon-bg-info: #f0f9ff;

    /* Typography */
    --font-family: 'Inter', sans-serif;
    --transition-speed: 0.3s;
}

/* Dark Mode Palette (site default — see script.js) */
[data-theme="dark"] {
    color-scheme: dark;
    --bg-main: #0f172a;
    --bg-light: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --header-bg: rgba(15, 23, 42, 0.9);
    --feature-icon-bg: #1e3a5f;
    --feature-icon-bg-warning: #4a2e05;
    --feature-icon-bg-info: #0c374a;
    --card-shadow: rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: var(--font-family);
    color: var(--text-main);
    background-color: var(--bg-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-speed);
}

ul {
    list-style: none;
}

.custom-gap {
    row-gap: 1.5rem;
}

/* Skip to content (accessibility) */
.skip-link {
    position: absolute;
    top: -60px;
    left: 1rem;
    background: var(--primary);
    color: #ffffff;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    z-index: 3000;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 1rem;
}
/* =====================================
this for tool-hero in all tools pages
 ===================================== */
 @media (min-width: 768px) {
   .tool-hero .container h1,
   .tool-hero .container p {
     text-align: center;
   }
 }
/* =========================================
   MODULAR COMPONENTS (Header & Footer)
   ========================================= */
.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    background-color: var(--header-bg);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 1rem 0;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
}

.logo svg {
    color: var(--primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
}

/* Dark Mode Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--bg-light);
    color: var(--text-main);
    cursor: pointer;
    transition: all var(--transition-speed);
    flex-shrink: 0;
}

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

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

.site-nav {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-main);
    flex-direction: column;
    align-items: center;
    padding: 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    transition: max-height 0.35s ease, opacity 0.25s ease, visibility 0.35s ease, padding 0.35s ease;
}

.site-nav.active {
    max-height: 500px;
    opacity: 1;
    visibility: visible;
    padding: 1.5rem 0;
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--primary);
}

.mobile-menu-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: #ffffff;
    transform: translateY(-2px);
}

/* Footer */
.site-footer {
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.95rem;
}

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

.footer-bottom {
    color: var(--text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

/* =========================================
   BREADCRUMB (reusable across tool pages)
   ========================================= */
.breadcrumb-wrapper {
    background-color: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    padding: 0.85rem 0;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--text-muted);
    font-weight: 500;
}

.breadcrumb a:hover {
    color: var(--primary);
}

.breadcrumb .breadcrumb-current {
    color: var(--text-main);
    font-weight: 600;
}

.breadcrumb .breadcrumb-sep {
    color: var(--border-color);
    display: inline-flex;
}

/* =========================================
   TOAST NOTIFICATION SYSTEM (global)
   ========================================= */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 360px;
    width: calc(100% - 3rem);
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.9rem 1rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--info);
    border-radius: 10px;
    box-shadow: 0 10px 25px -5px var(--card-shadow);
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast-success { border-left-color: var(--success); }
.toast-error { border-left-color: var(--error); }
.toast-warning { border-left-color: var(--warning); }
.toast-info { border-left-color: var(--info); }

.toast-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1px;
}

.toast-success .toast-icon { color: var(--success); }
.toast-error .toast-icon { color: var(--error); }
.toast-warning .toast-icon { color: var(--warning); }
.toast-info .toast-icon { color: var(--info); }

.toast-message {
    font-size: 0.9rem;
    color: var(--text-main);
    line-height: 1.4;
}

@media (max-width: 575px) {
    .toast-container {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        max-width: none;
        width: calc(100% - 2rem);
    }
}

/* =========================================
   BACK TO TOP BUTTON (reusable across pages)
   ========================================= */
.back-to-top {
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: #ffffff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    box-shadow: 0 4px 12px var(--card-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease, background-color var(--transition-speed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-hover);
}

@media (max-width: 575px) {
    .back-to-top {
        left: 1rem;
        bottom: 1rem;
        width: 40px;
        height: 40px;
    }
}

/* =========================================
   SECTIONS (Mobile First Base)
   ========================================= */
.section-padding {
    padding: 4rem 0;
}

.section-header {
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.bg-light {
    background-color: var(--bg-light);
}

/* Hero Section */
.hero {
    padding: 6rem 0 4rem;
    background: radial-gradient(circle at center, var(--bg-light) 0%, var(--bg-main) 100%);
}

.gradient-text {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, var(--primary), var(--cat-video), var(--cat-write));
    background-size: 200% auto;
    color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
}

.hero-subtext {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2rem;
}

.hero-actions {
    margin-bottom: 3rem;
}

.hero-actions .btn {
    font-size: 1rem;
    padding: 0.85rem 2rem;
}
@media (min-width: 768px) {
  .gradient-text {
    text-align: center;
  }
  .hero-subtext {
    text-align: center;
  }
  .hero-actions {
    margin: 0 auto 1.5rem;
    width: fit-content;
  }
}
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Ticker Animation */
.ticker-wrapper {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 1rem 0;
    display: flex;
    /* Soft fade edges */
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.ticker-track {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    animation: tickerScroll 30s linear infinite;
}

.ticker-track:hover {
    animation-play-state: paused;
}

.ticker-item {
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    color: #fff;
    white-space: nowrap;
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.ticker-item:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

@keyframes tickerScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-100%); } /* Scrolls exactly half the cloned width */
}

/* Category Colors */
.cat-pdf { background-color: var(--cat-pdf); }
.cat-image { background-color: var(--cat-image); }
.cat-video { background-color: var(--cat-video); }
.cat-programming { background-color: var(--cat-programming); }
.cat-encode { background-color: var(--cat-encode); }
.cat-write { background-color: var(--cat-write); }
.cat-ai { background-color: var(--cat-ai); }

.cat-pdf-bg { background-color: var(--cat-pdf); }
.cat-image-bg { background-color: var(--cat-image); }
.cat-video-bg { background-color: var(--cat-video); }
.cat-programming-bg { background-color: var(--cat-programming); }
.cat-encode-bg { background-color: var(--cat-encode); }
.cat-write-bg { background-color: var(--cat-write); }
.cat-ai-bg { background-color: var(--cat-ai); }

/* =========================================
   TOOL FILTER TABS (homepage tools grid)
   ========================================= */
.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem;
    margin-bottom: 2.5rem;
}

.filter-tab {
    padding: 0.5rem 1.1rem;
    border-radius: 50px;
    border: 1px solid var(--border-color);
    background: var(--bg-main);
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-tab:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-tab.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
}

.tool-card-col {
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.tool-card-col.filtered-out {
    display: none;
}

.view-all-wrapper {
    margin-top: 3rem;
}

.btn-outline {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    background: transparent;
    transition: all var(--transition-speed);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Popular Tools Cards */
.tool-card {
    display: block;
    padding: 1.5rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed), background-color var(--transition-speed), border-color var(--transition-speed);
    height: 100%;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px var(--card-shadow);
    border-color: transparent;
}

.tool-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.tool-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.tool-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* Features */
.feature-box {
    padding: 2rem 1rem;
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.feature-icon.icon-primary {
    background: var(--feature-icon-bg);
    color: var(--primary);
}

.feature-icon.icon-warning {
    background: var(--feature-icon-bg-warning);
    color: var(--warning);
}

.feature-icon.icon-info {
    background: var(--feature-icon-bg-info);
    color: var(--cat-ai);
}

.feature-box h4 {
    font-size: 1.25rem;
    text-align: center;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.feature-box p {
    color: var(--text-muted);
    text-align: center;
    font-size: 0.95rem;
}


/* =========================================
   MEDIA QUERIES (Desktop Scaling)
   ========================================= */
@media (min-width: 768px) {
    .custom-gap {
        row-gap: 2rem;
    }

    .mobile-menu-toggle {
        display: none;
    }

    .site-nav {
        display: flex;
        position: static;
        flex-direction: row;
        width: auto;
        padding: 0;
        background: transparent;
        border-bottom: none;
        box-shadow: none;
        max-height: none;
        opacity: 1;
        visibility: visible;
        overflow: visible;
        transition: none;
    }

    .nav-links {
        flex-direction: row;
        margin-bottom: 0;
        margin-right: 2rem;
    }

    .hero {
        padding: 8rem 0 6rem;
    }

    .gradient-text {
        font-size: 4rem;
    }

    .hero-subtext {
        font-size: 1.25rem;
    }
}