/* ============================================================
   File Hash Generator – Stylesheet
   Dark terminal / neon-green aesthetic inspired by reference
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

/* ---------- CSS Variables ---------- */
:root {
    --bg-base: #0a0e0f;
    --bg-panel: #0f1517;
    --bg-card: #121a1c;
    --bg-input: #0c1214;
    --border: #1c2d2f;
    --border-bright: #1e3a35;
    --green-primary: #00ff88;
    --green-dim: #00d070;
    --green-glow: rgba(0, 255, 136, 0.15);
    --green-glow2: rgba(0, 255, 136, 0.06);
    --text-primary: #e0ffe8;
    --text-dim: #5a7a6e;
    --text-muted: #2d4a40;
    --accent-red: #ff4455;
    --accent-blue: #00aaff;
    --accent-yellow: #ffcc00;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    --font-ui: 'Inter', sans-serif;
    --radius: 4px;
    --radius-lg: 8px;
    --transition: 0.18s ease;
}

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

/* ---------- Body / Layout ---------- */
body {
    background: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-mono);
    min-height: 100vh;
    line-height: 1.6;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    padding: 24px 32px 60px;
    max-width: 1100px;
    overflow-x: hidden;
}

/* ---------- Tool Header ---------- */
.tool-header {
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.header-badge {
    display: inline-block;
    font-size: 0.7rem;
    color: var(--green-primary);
    letter-spacing: 0.15em;
    background: var(--green-glow2);
    border: 1px solid var(--border-bright);
    padding: 3px 12px;
    border-radius: var(--radius);
    margin-bottom: 12px;
}

.tool-header h1 {
    font-family: var(--font-mono);
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--green-primary);
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.4);
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}

.tool-header h1 i {
    margin-right: 8px;
}

.tool-header p {
    color: var(--text-dim);
    font-size: 0.85rem;
    font-family: var(--font-ui);
}

/* ---------- Comparison Bar ---------- */
.comparison-bar-section {
    margin-bottom: 28px;
}

.comparison-bar {
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--bg-input);
    border: 1px solid var(--border-bright);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.comparison-bar:focus-within {
    border-color: var(--green-primary);
    box-shadow: 0 0 0 3px var(--green-glow);
}

.comparison-icon {
    padding: 0 14px;
    color: var(--green-primary);
    font-size: 0.9rem;
    flex-shrink: 0;
}

#comparison-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    padding: 12px 4px;
    letter-spacing: 0.03em;
}

#comparison-input::placeholder {
    color: var(--text-muted);
}

.btn-compare-clear {
    background: transparent;
    border: none;
    color: var(--text-dim);
    padding: 0 14px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: color var(--transition);
}

.btn-compare-clear:hover {
    color: var(--accent-red);
}

.comparison-status {
    padding: 4px 14px;
    font-size: 0.75rem;
    font-family: var(--font-ui);
    font-weight: 600;
    letter-spacing: 0.05em;
    min-width: 110px;
    text-align: center;
}

.comparison-status.match {
    color: var(--green-primary);
}

.comparison-status.mismatch {
    color: var(--accent-red);
}

/* Analyze button */
.btn-analyze {
    flex-shrink: 0;
    background: transparent;
    border: 1px solid var(--green-primary);
    color: var(--green-primary);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 7px 14px;
    border-radius: var(--radius);
    cursor: pointer;
    margin: 6px 6px 6px 0;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background var(--transition), box-shadow var(--transition);
    white-space: nowrap;
}

.btn-analyze:hover {
    background: var(--green-glow);
    box-shadow: 0 0 12px var(--green-glow);
}

/* Analysis Result Panel */
.analysis-panel {
    margin-top: 12px;
    border: 1px solid var(--border-bright);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    overflow: hidden;
    animation: fadeSlideDown 0.22s ease;
}

.analysis-panel.hidden {
    display: none;
}

@keyframes fadeSlideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

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

.analysis-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 18px;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
}

.analysis-label {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--green-primary);
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.analysis-close {
    background: transparent;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 0.85rem;
    padding: 2px 6px;
    border-radius: var(--radius);
    transition: color var(--transition);
}

.analysis-close:hover {
    color: var(--accent-red);
}

.analysis-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

.analysis-table tr {
    border-bottom: 1px solid var(--border);
}

.analysis-table tr:last-child {
    border-bottom: none;
}

.analysis-table th {
    padding: 11px 20px;
    text-align: left;
    color: var(--text-primary);
    font-weight: 600;
    width: 180px;
    white-space: nowrap;
    background: var(--bg-input);
    letter-spacing: 0.02em;
}

.analysis-table td {
    padding: 11px 20px;
    color: var(--green-dim);
    word-break: break-all;
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

.analysis-table td.an-unknown {
    color: var(--accent-yellow);
}

.analysis-table td.an-error {
    color: var(--accent-red);
}

/* ---------- Step Sections ---------- */
.step-section {
    margin-bottom: 32px;
}

.step-label {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--green-primary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 8px;
    text-shadow: 0 0 12px rgba(0, 255, 136, 0.3);
}

.step-num {
    color: var(--green-primary);
}

.step-desc {
    font-family: var(--font-ui);
    font-size: 0.83rem;
    color: var(--text-dim);
    margin-bottom: 16px;
}

/* ---------- Drop Zone ---------- */
.drop-zone {
    border: 1px dashed var(--border-bright);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    padding: 28px 24px 20px;
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
    position: relative;
}

.drop-zone.drag-over {
    border-color: var(--green-primary);
    background: var(--green-glow2);
    box-shadow: 0 0 30px var(--green-glow);
}

.drop-zone-inner {
    text-align: center;
    padding: 18px 0;
    pointer-events: none;
}

.drop-icon {
    font-size: 2.2rem;
    color: var(--green-dim);
    margin-bottom: 10px;
    display: block;
    filter: drop-shadow(0 0 8px rgba(0, 255, 136, 0.4));
}

.drop-text {
    display: block;
    font-size: 0.82rem;
    color: var(--green-primary);
    letter-spacing: 0.08em;
    margin-bottom: 4px;
}

/* File picker row */
.file-picker-row {
    display: flex;
    align-items: center;
    gap: 14px;
    border-top: 1px solid var(--border);
    padding-top: 16px;
    margin-top: 4px;
}

.btn-choose-files {
    background: transparent;
    border: 1px solid var(--green-primary);
    color: var(--green-primary);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 8px 18px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background var(--transition), box-shadow var(--transition);
    white-space: nowrap;
}

.btn-choose-files:hover {
    background: var(--green-glow);
    box-shadow: 0 0 14px var(--green-glow);
}

.chosen-file-label {
    font-size: 0.82rem;
    color: var(--text-dim);
    font-family: var(--font-ui);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Selected files list */
.selected-files-list {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.file-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-input);
    border: 1px solid var(--border-bright);
    border-radius: 3px;
    padding: 4px 10px;
    font-size: 0.75rem;
    color: var(--green-dim);
    font-family: var(--font-mono);
}

.file-chip span.fsize {
    color: var(--text-dim);
    font-size: 0.7rem;
}

/* ---------- Algorithm Grid ---------- */
.algo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.algo-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 16px;
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
    user-select: none;
}

.algo-checkbox:hover {
    border-color: var(--green-dim);
    background: var(--green-glow2);
}

.algo-checkbox input[type="checkbox"] {
    display: none;
}

.algo-indicator {
    width: 14px;
    height: 14px;
    border: 1px solid var(--text-dim);
    border-radius: 2px;
    flex-shrink: 0;
    position: relative;
    transition: border-color var(--transition), background var(--transition);
}

.algo-checkbox input:checked~.algo-indicator {
    background: var(--green-primary);
    border-color: var(--green-primary);
    box-shadow: 0 0 8px rgba(0, 255, 136, 0.5);
}

.algo-checkbox input:checked~.algo-indicator::after {
    content: '';
    position: absolute;
    left: 3px;
    top: 0px;
    width: 5px;
    height: 9px;
    border: 2px solid var(--bg-base);
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
}

.algo-name {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.04em;
    flex: 1;
}

.algo-checkbox input:checked~.algo-indicator+.algo-name {
    color: var(--green-primary);
}

.algo-bits {
    font-size: 0.72rem;
    color: var(--text-dim);
    font-family: var(--font-ui);
}

/* ---------- Calculate Button ---------- */
.btn-calculate {
    width: 100%;
    background: transparent;
    border: 1px solid var(--green-primary);
    color: var(--green-primary);
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    padding: 16px;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: background var(--transition), box-shadow var(--transition), opacity var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-calculate:not(:disabled):hover {
    background: var(--green-glow);
    box-shadow: 0 0 24px var(--green-glow), 0 0 60px rgba(0, 255, 136, 0.08);
}

.btn-calculate:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.btn-calculate.loading {
    animation: pulse-border 1.2s ease-in-out infinite;
}

@keyframes pulse-border {

    0%,
    100% {
        box-shadow: 0 0 0 0 var(--green-glow);
    }

    50% {
        box-shadow: 0 0 0 8px transparent;
    }
}

/* ---------- Results Section ---------- */
.results-section {
    border: 1px solid var(--border-bright);
    border-radius: var(--radius-lg);
    background: var(--bg-panel);
    overflow: hidden;
}

.results-section.hidden {
    display: none;
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
}

.results-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-dim);
    letter-spacing: 0.12em;
}

.results-actions {
    display: flex;
    gap: 8px;
}

.btn-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 1px solid var(--border-bright);
    color: var(--green-primary);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 6px 14px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition);
}

.btn-action:hover {
    background: var(--green-glow);
    border-color: var(--green-primary);
}

.btn-action.btn-clear {
    color: var(--accent-red);
    border-color: rgba(255, 68, 85, 0.3);
}

.btn-action.btn-clear:hover {
    background: rgba(255, 68, 85, 0.08);
    border-color: var(--accent-red);
}

/* ---------- File Hash Cards ---------- */
.file-results {
    padding: 0;
}

.hash-card {
    border-bottom: 1px solid var(--border);
    padding: 20px 24px;
    position: relative;
}

.hash-card:last-child {
    border-bottom: none;
}

/* Progress */
.hash-progress-wrap {
    margin-bottom: 14px;
}

.hash-progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 5px;
    font-family: var(--font-ui);
}

.hash-progress-bar-track {
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}

.hash-progress-bar-fill {
    height: 100%;
    background: var(--green-primary);
    border-radius: 2px;
    width: 0%;
    transition: width 0.2s ease;
    box-shadow: 0 0 6px rgba(0, 255, 136, 0.5);
}

/* Card header */
.hash-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
    flex-wrap: wrap;
    gap: 8px;
}

.hash-file-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.hash-file-name {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--green-primary);
    font-family: var(--font-mono);
    word-break: break-all;
}

.hash-file-meta {
    font-size: 0.75rem;
    color: var(--text-dim);
    font-family: var(--font-ui);
}

.hash-timestamp {
    font-size: 0.7rem;
    color: var(--green-dim);
    font-family: var(--font-mono);
    letter-spacing: 0.03em;
    text-align: right;
    white-space: nowrap;
}

/* Hash rows table */
.hash-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

.hash-table-row {
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}

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

.hash-table-algo {
    padding: 10px 0;
    color: var(--text-dim);
    font-weight: 600;
    letter-spacing: 0.06em;
    width: 120px;
    vertical-align: top;
    white-space: nowrap;
}

.hash-table-value {
    padding: 10px 14px;
    color: var(--green-dim);
    word-break: break-all;
    letter-spacing: 0.03em;
    vertical-align: top;
}

.hash-table-value.match-highlight {
    color: var(--green-primary);
    text-shadow: 0 0 8px rgba(0, 255, 136, 0.4);
    background: var(--green-glow2);
}

.hash-table-value.mismatch-highlight {
    color: var(--accent-red);
    background: rgba(255, 68, 85, 0.05);
}

.hash-table-copy {
    padding: 10px 0 10px 8px;
    text-align: right;
    vertical-align: top;
    white-space: nowrap;
    width: 60px;
}

.btn-copy {
    background: transparent;
    border: 1px solid var(--border-bright);
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    padding: 4px 10px;
    border-radius: var(--radius);
    cursor: pointer;
    letter-spacing: 0.05em;
    transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.btn-copy:hover {
    color: var(--green-primary);
    border-color: var(--green-primary);
    background: var(--green-glow2);
}

.btn-copy.copied {
    color: var(--green-primary);
    border-color: var(--green-primary);
}

/* ---------- Utilities ---------- */
.hidden {
    display: none !important;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-base);
}

::-webkit-scrollbar-thumb {
    background: var(--border-bright);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--green-dim);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .main-content {
        padding: 16px 16px 40px;
    }

    .algo-grid {
        grid-template-columns: 1fr;
    }

    .hash-table-algo {
        width: 80px;
        font-size: 0.7rem;
    }

    .hash-table-value {
        font-size: 0.7rem;
    }

    .results-actions {
        flex-direction: column;
        gap: 6px;
    }

    .comparison-bar {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .tool-header h1 {
        font-size: 1.3rem;
    }

    .hash-card {
        padding: 14px 14px;
    }
}