/* css/style.css */
:root {
    /* Colors */
    --bg-base: #09090b;
    --bg-glass: rgba(24, 24, 27, 0.6);
    --border-glass: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #6366f1;
    --accent-primary-hover: #4f46e5;

    --pri-high: #ef4444;
    --pri-med: #f59e0b;
    --pri-low: #22c55e;

    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);

    /* Animation */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body.theme-dark {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    /* Subtle background gradient */
    background-image:
        radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(168, 85, 247, 0.08) 0%, transparent 50%);
}

.mono {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

/* Splash Screen */
.splash-screen {
    position: fixed;
    inset: 0;
    background-color: var(--bg-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 50;
    transition: opacity 0.5s ease;
}

.splash-icon {
    font-size: 4rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.splash-title {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #a5b4fc, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.75rem;
}

.splash-msg {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 2rem;
}

.progress-bar-container {
    width: 280px;
    height: 6px;
    background: #1e1e24;
    border-radius: 999px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #6366f1, #a855f7);
    border-radius: 999px;
    width: 5%;
    transition: width 0.4s ease;
}

.splash-error {
    color: var(--pri-high);
    font-size: 0.85rem;
    margin-top: 1.5rem;
    max-width: 380px;
    text-align: center;
    padding: 1rem;
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-md);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Glassmorphism Utilities */
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-glass);
}

/* Layout */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
    animation: fadeIn 0.6s ease-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2.5rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-icon {
    font-size: 2.5rem;
    color: #a5b4fc;
    display: flex;
}

.brand-text h1 {
    font-size: 1.7rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.sub-brand {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.badge {
    padding: 0.5rem 1rem;
    border-radius: 999px;
    font-size: 0.85rem;
    color: #a5b4fc;
    font-weight: 500;
}

.app-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 2rem;
    align-items: start;
}

@media (max-width: 900px) {
    .app-layout {
        grid-template-columns: 1fr;
    }
}

/* Cards */
.card {
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-title i {
    color: var(--accent-primary);
    font-size: 1.25rem;
}

.card-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.mb-sm {
    margin-bottom: 1rem;
}

/* Forms & Inputs */
.form-row {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.input-primary,
.input-secondary,
.select-primary,
.input-date,
.input-search,
.input-repl {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    outline: none;
    transition: all var(--transition-fast);
}

.input-primary:focus,
.input-secondary:focus,
.select-primary:focus,
.input-date:focus,
.input-search:focus,
.input-repl:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
    background: rgba(0, 0, 0, 0.6);
}

.input-primary {
    flex: 1;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
}

.select-wrapper {
    position: relative;
    width: 180px;
}

.select-primary {
    width: 100%;
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    font-size: 0.9rem;
    appearance: none;
    cursor: pointer;
}

.select-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

.input-icon-wrapper {
    position: relative;
    flex: 1;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.input-secondary.with-icon {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    font-size: 0.9rem;
}

.input-date {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.input-date::-webkit-calendar-picker-indicator {
    filter: invert(1);
    opacity: 0.5;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 0 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    background: var(--accent-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 0 1rem;
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
}

.btn-secondary:active {
    transform: translateY(0);
}

/* Filters & Search */
.controls-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.filters {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.search-box {
    position: relative;
    width: 220px;
}

.search-icon {
    position: absolute;
    left: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.input-search {
    width: 100%;
    padding: 0.5rem 1rem 0.5rem 2.2rem;
    font-size: 0.85rem;
    border-radius: 999px;
}

/* Todo List */
.todo-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 100px;
}

.todo-item {
    padding: 1rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: all var(--transition-base);
    animation: slideIn 0.3s ease-out forwards;
    position: relative;
    overflow: hidden;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.todo-item:hover {
    transform: translateX(4px);
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
}

.todo-item.done {
    opacity: 0.5;
}

.todo-item.done .todo-title {
    text-decoration: line-through;
    color: var(--text-secondary);
}

.pri-high {
    border-left: 4px solid var(--pri-high);
}

.pri-medium {
    border-left: 4px solid var(--pri-med);
}

.pri-low {
    border-left: 4px solid var(--pri-low);
}

.todo-checkbox {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid var(--text-secondary);
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: transparent;
    margin-top: 2px;
}

.todo-checkbox:hover {
    border-color: var(--accent-primary);
}

.todo-item.done .todo-checkbox {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.todo-content {
    flex: 1;
    min-width: 0;
}

.todo-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 0.4rem;
}

.todo-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.todo-meta {
    display: flex;
    gap: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    align-items: center;
}

.badge-pri {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.badge-pri.high {
    color: var(--pri-high);
}

.badge-pri.medium {
    color: var(--pri-med);
}

.badge-pri.low {
    color: var(--pri-low);
}

.todo-tags {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.tag {
    background: rgba(99, 102, 241, 0.15);
    color: #a5b4fc;
    border-radius: 999px;
    padding: 2px 8px;
    font-size: 0.7rem;
    font-weight: 600;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.btn-delete {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.2);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.2rem;
    border-radius: 4px;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.todo-item:hover .btn-delete {
    color: var(--text-secondary);
}

.btn-delete:hover {
    color: var(--pri-high) !important;
    background: rgba(239, 68, 68, 0.1);
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-lg);
    border: 1px dashed rgba(255, 255, 255, 0.1);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-text {
    font-size: 1rem;
    font-weight: 500;
}

/* Analytics */
.analytics-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.progress-track {
    background: rgba(0, 0, 0, 0.5);
    border-radius: 999px;
    height: 8px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #6366f1, #a855f7);
    border-radius: 999px;
    transition: width 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.stat-box {
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-val {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.stat-val.total {
    color: var(--text-primary);
}

.stat-val.done {
    color: var(--pri-low);
}

.stat-val.active {
    color: #818cf8;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pri-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    font-size: 0.75rem;
    padding: 0.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pri-stat-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-secondary);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.dot.high {
    background: var(--pri-high);
}

.dot.med {
    background: var(--pri-med);
}

.dot.low {
    background: var(--pri-low);
}

.alerts-container {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.alert {
    font-size: 0.8rem;
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert.overdue {
    color: var(--pri-high);
    background: rgba(239, 68, 68, 0.1);
}

.alert.soon {
    color: var(--pri-med);
    background: rgba(245, 158, 11, 0.1);
}

.tags-analytics {
    margin-top: 0.5rem;
}

.tags-title {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.tag-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    padding: 0.3rem 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
}

.tag-row:last-child {
    border-bottom: none;
}

.tag-name {
    color: #a5b4fc;
}

.tag-count {
    color: var(--text-secondary);
}

/* REPL */
.repl-output {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 0.8rem;
    height: 180px;
    overflow-y: auto;
    font-size: 0.8rem;
    margin-bottom: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 4px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.repl-line {
    animation: slideUp 0.15s ease-out;
    line-height: 1.4;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.repl-input-group {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    position: relative;
}

.repl-prompt {
    position: absolute;
    left: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent-primary);
    font-weight: 700;
    z-index: 10;
}

.input-repl {
    flex: 1;
    padding: 0.6rem 0.6rem 0.6rem 2rem;
    font-size: 0.8rem;
}

.btn-repl {
    background: #10b981;
    color: white;
    border: none;
    border-radius: var(--radius-md);
    width: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-repl:hover {
    background: #059669;
    transform: scale(1.05);
}

/* Rouge Syntax Highlighting (Monokai Sublime base) */
.repl-line {
    font-size: 0.8rem;
    color: #f8f8f2;
}

.repl-line>span.n {
    color: #f8f8f2;
}

.repl-line>span.k,
.repl-line>span.kd,
.repl-line>span.kp {
    color: #f92672;
}

.repl-line>span.s,
.repl-line>span.s1,
.repl-line>span.s2 {
    color: #e6db74;
}

.repl-line>span.sr {
    color: #e6db74;
}

.repl-line>span.na,
.repl-line>span.nc,
.repl-line>span.nf {
    color: #a6e22e;
}

.repl-line>span.nn {
    color: #66d9ef;
    font-style: italic;
}

.repl-line>span.m,
.repl-line>span.mi,
.repl-line>span.mf {
    color: #ae81ff;
}

.repl-line>span.c,
.repl-line>span.c1 {
    color: #75715e;
    font-style: italic;
}

.repl-line>span.o,
.repl-line>span.ow {
    color: #f92672;
}

.repl-line>span.vc,
.repl-line>span.vg,
.repl-line>span.vi {
    color: #f8f8f2;
}

.repl-line>span.il {
    color: #ae81ff;
}

.repl-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.preset-btn {
    font-size: 0.7rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    padding: 0.2rem 0.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.preset-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}