/* Global CSS & Design System for tinytools */

:root[data-theme="dark"] {
    --bg-primary: #080808;
    --bg-secondary: #0d0d0d;
    --bg-card: #0d0d0d;
    --bg-card-hover: #141414;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(255, 255, 255, 0.16);
    --text-primary: #f5f5f4;
    --text-secondary: #a8a29e;
    --text-muted: #57534e;
    --primary: #f59e0b;
    --primary-hover: #d97706;
    --primary-glow: rgba(245, 158, 11, 0.15);
    --accent-purple: #eae8e6;
    --success: #f5f5f4;
    --success-light: rgba(255, 255, 255, 0.04);
    --warning: #f59e0b;
    --warning-light: rgba(245, 158, 11, 0.08);
    --danger: #ef4444;
    --danger-light: rgba(239, 68, 68, 0.08);
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --backdrop-blur: none;
    --scrollbar-thumb: #222222;
    --scrollbar-track: #080808;
}

:root[data-theme="light"] {
    --bg-primary: #fafaf9;
    --bg-secondary: #f5f5f4;
    --bg-card: #f5f5f4;
    --bg-card-hover: #eeeeec;
    --border-color: rgba(0, 0, 0, 0.08);
    --border-color-hover: rgba(0, 0, 0, 0.16);
    --text-primary: #1c1917;
    --text-secondary: #57534e;
    --text-muted: #a8a29e;
    --primary: #d97706;
    --primary-hover: #b45309;
    --primary-glow: rgba(217, 119, 6, 0.15);
    --accent-purple: #1c1917;
    --success: #1c1917;
    --success-light: rgba(0, 0, 0, 0.04);
    --warning: #d97706;
    --warning-light: rgba(217, 119, 6, 0.08);
    --danger: #dc2626;
    --danger-light: rgba(220, 38, 38, 0.08);
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --backdrop-blur: none;
    --scrollbar-thumb: #e5e5e0;
    --scrollbar-track: #fafaf9;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

body {
    font-family: 'Geist', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Layout Grid */
.app-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
}

/* Sidebar Navigation */
.app-sidebar {
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.sidebar-header {
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    object-fit: contain;
}

.logo-text {
    font-family: 'Geist Mono', monospace;
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.2px;
    color: var(--text-primary);
    display: inline-block;
    white-space: nowrap;
    overflow: hidden;
    border-right: 2px solid var(--primary);
    width: 0;
    animation: typing 1.5s steps(10, end) forwards, blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0; }
    to { width: 10ch; }
}

@keyframes blink-caret {
    from, to { border-color: transparent }
    50% { border-color: var(--primary); }
}

.mobile-close-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
}

.sidebar-search {
    padding: 0 20px 20px 20px;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    pointer-events: none;
}

.search-input-wrapper input {
    width: 100%;
    padding: 10px 12px 10px 38px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.search-input-wrapper input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 10px 16px;
}

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.nav-separator {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    margin: 16px 8px 8px 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.925rem;
    transition: all 0.2s ease;
}

.nav-item:hover {
    color: var(--text-primary);
    background-color: var(--bg-card-hover);
}

.nav-item.active {
    color: var(--text-primary);
    background-color: var(--bg-card-hover);
    border: 1px solid var(--border-color-hover);
    font-weight: 600;
}

.nav-icon {
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

.theme-toggle-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

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

.theme-icon {
    display: flex;
    align-items: center;
}

/* Mobile Header */
.mobile-header {
    display: none;
    height: 64px;
    padding: 0 20px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 90;
}

.mobile-menu-btn, .theme-toggle-btn-mobile {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-logo-mobile {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Main Area */
.app-main {
    overflow-y: auto;
    height: 100vh;
}

.content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px;
}

/* View Panels */
.view-panel {
    animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.view-header {
    margin-bottom: 32px;
}

.view-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.view-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    font-weight: 400;
}

/* Dashboard Search */
.search-container-dashboard {
    margin-bottom: 16px;
}

.search-input-wrapper-lg {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input-wrapper-lg .search-icon {
    position: absolute;
    left: 20px;
    color: var(--text-muted);
}

.search-input-wrapper-lg input {
    width: 100%;
    padding: 16px 20px 16px 56px;
    font-family: inherit;
    font-size: 1.125rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.search-input-wrapper-lg input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow), var(--shadow-md);
    transform: translateY(-1px);
}

/* Dashboard Tags Filter */
.dashboard-tags-filter {
    display: flex;
    gap: 8px;
    margin-bottom: 32px;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none;  /* IE and Edge */
    padding-bottom: 4px;
}

.dashboard-tags-filter::-webkit-scrollbar {
    display: none; /* Chrome, Safari and Opera */
}

.filter-tag-btn {
    font-family: 'Geist Mono', monospace;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    background-color: transparent;
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.filter-tag-btn:hover {
    border-color: var(--border-color-hover);
    color: var(--text-primary);
}

.filter-tag-btn.active {
    background-color: var(--text-primary);
    border-color: var(--text-primary);
    color: var(--bg-primary);
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.tool-card {
    display: flex;
    flex-direction: column;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    text-decoration: none;
    color: inherit;
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(800px circle at var(--mouse-x, 0) var(--mouse-y, 0), rgba(255, 255, 255, 0.04), transparent 40%);
    z-index: 1;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

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

.tool-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-md);
}

.tool-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.tool-card:hover .tool-card-icon {
    transform: scale(1.05) rotate(2deg);
}

/* Category Colors */
.math-color, .pdf-color, .text-color, .network-color {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.tool-card-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.tool-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
    gap: 12px;
}

.tool-card-title {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: var(--text-primary);
}

.tool-badge {
    font-family: 'Geist Mono', monospace;
    font-size: 0.725rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.tool-card-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 20px;
    flex-grow: 1;
}

.tool-card-action {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    transition: gap 0.2s ease;
}

.tool-card-action svg {
    transition: transform 0.2s ease;
}

.tool-card:hover .tool-card-action {
    color: var(--accent-purple);
    gap: 10px;
}

.tool-card:hover .tool-card-action svg {
    transform: translateX(2px);
}

/* Tool View Panel */
.tool-view-header {
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.back-dashboard-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    align-self: flex-start;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.back-dashboard-btn:hover {
    color: var(--primary);
    background-color: var(--bg-card);
}

.tool-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tool-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.tool-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* Shared UI Components */
.card-premium {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    box-shadow: var(--shadow-md);
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-danger, .btn-success {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    border: none;
}

.btn-primary {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    border: 1px solid var(--text-primary);
}
.btn-primary:hover {
    background-color: transparent;
    color: var(--text-primary);
    transform: translateY(-1px);
}
.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}
.btn-secondary:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--border-color-hover);
}

.btn-danger {
    background-color: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
}
.btn-danger:hover {
    background-color: var(--danger);
    color: #ffffff;
}

.btn-success {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color-hover);
}
.btn-success:hover {
    background-color: var(--border-color-hover);
    color: var(--bg-primary);
}

/* Inputs & Form Groups */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.input-premium {
    width: 100%;
    padding: 12px 16px;
    font-family: inherit;
    font-size: 0.95rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.input-premium:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.input-premium::placeholder {
    color: var(--text-muted);
}

/* Dropzones (for file uploads) */
.dropzone-premium {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    background-color: rgba(20, 27, 45, 0.2);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.dropzone-premium:hover, .dropzone-premium.dragover {
    border-color: var(--primary);
    background-color: rgba(99, 102, 241, 0.05);
}

.dropzone-icon {
    color: var(--text-muted);
}

.dropzone-premium:hover .dropzone-icon {
    color: var(--primary);
    transform: translateY(-2px);
    transition: transform 0.2s ease;
}

.dropzone-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.dropzone-subtext {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Responsive Rules */
@media (max-width: 1024px) {
    .app-container {
        grid-template-columns: 1fr;
    }

    .app-sidebar {
        position: fixed;
        left: -280px;
        width: 280px;
        transition: left 0.3s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.3s ease;
        box-shadow: var(--shadow-lg);
    }

    .app-sidebar.open {
        left: 0;
    }

    .mobile-close-btn {
        display: block;
    }

    .mobile-header {
        display: flex;
    }

    .app-main {
        height: calc(100vh - 64px);
    }

    .content-wrapper {
        padding: 24px;
    }
}

@media (max-width: 640px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }

    .view-title, .tool-title {
        font-size: 1.6rem;
    }

    .card-premium {
        padding: 20px;
    }
}

/* Copy link button next to titles */
.btn-copy-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 8px;
    width: 32px;
    height: 32px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    padding: 0;
}

.btn-copy-link:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-color-hover);
    color: var(--text-primary);
    transform: scale(1.05);
}

.btn-copy-link:active {
    transform: scale(0.95);
}

.btn-copy-link.copied {
    background: rgba(16, 124, 65, 0.15);
    border-color: var(--success);
    color: var(--success);
}