/* ============================================
   ImageCleaner — Editorial-Technical redesign
   Warm-dark bg · cream text · electric-lime accent
   Fraunces (display) + Onest (body) + JetBrains Mono
   ============================================ */

:root {
    /* Palette */
    --bg:            #0e0d0a;
    --bg-elev:       #171511;
    --bg-card:       rgba(23, 21, 17, 0.65);
    --bg-card-hover: rgba(28, 26, 22, 0.85);
    --bg-inset:      rgba(8, 7, 5, 0.5);

    --line:          rgba(242, 237, 225, 0.08);
    --line-strong:   rgba(242, 237, 225, 0.16);

    --text:          #f2ede1;
    --text-dim:      #9a9286;
    --text-subtle:   #625c52;

    --accent:        #c4fb51;
    --accent-hover:  #d2ff66;
    --accent-muted:  rgba(196, 251, 81, 0.12);
    --accent-glow:   rgba(196, 251, 81, 0.25);

    --warn:          #e8a04c;
    --danger:        #ef6e5a;

    /* Type */
    --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
    --font-body:    'Onest', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --font-mono:    'JetBrains Mono', 'SF Mono', ui-monospace, Consolas, monospace;

    /* Space */
    --sp-1: 0.25rem;
    --sp-2: 0.5rem;
    --sp-3: 0.75rem;
    --sp-4: 1rem;
    --sp-5: 1.5rem;
    --sp-6: 2rem;
    --sp-7: 3rem;
    --sp-8: 4rem;
    --sp-9: 6rem;

    /* Radius */
    --r-sm: 4px;
    --r-md: 8px;
    --r-lg: 12px;

    /* Motion */
    --t-quick: 120ms ease-out;
    --t-base:  180ms ease-out;
    --t-slow:  260ms ease-out;
}

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

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 400;
    line-height: 1.55;
    color: var(--text);
    background: var(--bg);
    min-height: 100vh;
    overflow-x: hidden;
}

::selection {
    background: var(--accent);
    color: #000;
}

/* === Background: static warm gradient + fine grain === */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 900px 600px at 85% -10%, rgba(196, 251, 81, 0.05), transparent 60%),
        radial-gradient(ellipse 700px 500px at 10% 110%, rgba(232, 160, 76, 0.04), transparent 60%),
        var(--bg);
    z-index: -2;
}

.bg-grain {
    position: fixed;
    inset: 0;
    background-image:
        radial-gradient(circle at 1px 1px, rgba(242, 237, 225, 0.02) 1px, transparent 1.5px);
    background-size: 3px 3px;
    z-index: -1;
    pointer-events: none;
    mix-blend-mode: overlay;
}

/* === Container === */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: var(--sp-6) var(--sp-5);
}

@media (min-width: 768px) {
    .container {
        padding: var(--sp-7) var(--sp-6);
    }
}

/* === Hero === */
.hero {
    padding: var(--sp-6) 0 var(--sp-7);
    animation: fadeUp 380ms ease-out;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    margin-bottom: var(--sp-5);
    color: var(--text);
}

.logo-mark {
    width: 26px;
    height: 26px;
    color: var(--accent);
    flex-shrink: 0;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--text);
}

.logo-text em {
    font-style: italic;
    font-weight: 400;
    color: var(--text);
}

.logo-tag {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--text-subtle);
    padding: 2px 6px;
    border: 1px solid var(--line-strong);
    border-radius: var(--r-sm);
    margin-left: var(--sp-1);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5.2vw, 3.5rem);
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -0.025em;
    color: var(--text);
    margin-bottom: var(--sp-3);
    max-width: 720px;
}

.hero-title em {
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: clamp(0.95rem, 1.6vw, 1.0625rem);
    color: var(--text-dim);
    max-width: 560px;
    margin-bottom: var(--sp-4);
    line-height: 1.55;
}

.hero-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--sp-2);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
}

.meta-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
    animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.45; }
}

.meta-divider {
    color: var(--text-subtle);
    opacity: 0.4;
}

/* === Upload Section === */
.upload-section {
    margin-bottom: var(--sp-7);
    animation: fadeUp 420ms ease-out 80ms backwards;
}

/* === Camera Profile Picker === */
.profile-picker {
    display: flex;
    align-items: stretch;
    margin-bottom: var(--sp-4);
    background: var(--bg-elev);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    overflow: hidden;
    transition: border-color var(--t-base);
}

.profile-picker:hover,
.profile-picker:focus-within {
    border-color: var(--line-strong);
}

.profile-label {
    display: flex;
    align-items: center;
    padding: 0 var(--sp-4);
    border-right: 1px solid var(--line);
    background: var(--bg-inset);
    flex-shrink: 0;
}

.profile-label-key {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--text-subtle);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.profile-select-wrap {
    position: relative;
    flex: 1;
    min-width: 0;
}

.profile-select {
    width: 100%;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background: transparent;
    border: none;
    padding: 0.75rem 2.5rem 0.75rem var(--sp-4);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 400;
    cursor: pointer;
    outline: none;
}

.profile-select optgroup {
    background: var(--bg-elev);
    color: var(--accent);
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-style: normal;
}

.profile-select option {
    background: var(--bg-elev);
    color: var(--text);
    font-family: var(--font-body);
    padding: var(--sp-2);
}

.profile-select-caret {
    position: absolute;
    right: var(--sp-4);
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    color: var(--text-subtle);
    pointer-events: none;
    transition: color var(--t-base);
}

.profile-select:hover + .profile-select-caret,
.profile-select:focus + .profile-select-caret {
    color: var(--accent);
}

@media (max-width: 540px) {
    .profile-picker {
        flex-direction: column;
    }
    .profile-label {
        padding: var(--sp-3) var(--sp-4);
        border-right: none;
        border-bottom: 1px solid var(--line);
    }
}

/* === Profile Info Panel === */
.profile-info {
    margin-bottom: var(--sp-4);
    background: var(--bg-inset);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    overflow: hidden;
}

.profile-info-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-3);
    padding: var(--sp-2) var(--sp-4);
    border-bottom: 1px solid var(--line);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

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

.profile-info-key {
    color: var(--text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.6875rem;
    white-space: nowrap;
}

.profile-info-value {
    color: var(--text);
    font-weight: 500;
    text-align: right;
    word-break: break-word;
}

.profile-info-value.accent {
    color: var(--accent);
}

@media (max-width: 540px) {
    .profile-info-row {
        padding: var(--sp-2) var(--sp-3);
    }
}

/* === Upload Zone === */
.upload-zone {
    position: relative;
    border: 1px dashed var(--line-strong);
    border-radius: var(--r-md);
    padding: var(--sp-8) var(--sp-5);
    background: var(--bg-card);
    cursor: pointer;
    transition: border-color var(--t-base), background var(--t-base);
    overflow: hidden;
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--accent);
    background: var(--accent-muted);
}

.upload-hover-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        var(--accent-muted), transparent 40%);
    opacity: 0;
    transition: opacity var(--t-base);
    pointer-events: none;
}

.upload-zone:hover .upload-hover-overlay {
    opacity: 1;
}

.upload-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.upload-icon {
    width: 40px;
    height: 40px;
    margin: 0 auto var(--sp-4);
    color: var(--accent);
    transition: transform var(--t-base);
}

.upload-zone:hover .upload-icon {
    transform: translateY(-2px);
}

.upload-icon svg {
    width: 100%;
    height: 100%;
}

.upload-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: -0.015em;
    margin-bottom: var(--sp-1);
    color: var(--text);
}

.upload-text {
    font-size: 0.9375rem;
    color: var(--text-dim);
    margin-bottom: var(--sp-3);
}

.upload-limit {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* === Processing === */
.processing-section {
    display: none;
    margin-bottom: var(--sp-7);
    animation: fadeUp 280ms ease-out;
}

.processing-section.active {
    display: block;
}

.processing-card {
    background: var(--bg-elev);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    padding: var(--sp-8) var(--sp-6);
    text-align: center;
}

.processing-animation {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--sp-5);
    color: var(--accent);
}

.processing-svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.processing-arc {
    fill: none;
    stroke-dasharray: 32 128;
    animation: arcSpin 1.1s linear infinite;
    transform-origin: center;
}

@keyframes arcSpin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

.processing-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    font-style: italic;
    color: var(--text);
    margin-bottom: var(--sp-2);
    letter-spacing: -0.015em;
}

.processing-status {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-dim);
    margin-bottom: var(--sp-5);
    word-break: break-all;
}

.progress-container {
    width: 100%;
    max-width: 420px;
    height: 2px;
    background: var(--line);
    margin: 0 auto var(--sp-3);
    overflow: hidden;
    border-radius: 1px;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: var(--accent);
    transition: width var(--t-base);
    box-shadow: 0 0 8px var(--accent-glow);
}

.processing-stats {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-subtle);
    letter-spacing: 0.05em;
}

#processedCount, #totalCount {
    color: var(--accent);
    font-weight: 500;
}

/* === Results === */
.results-section {
    display: none;
    animation: fadeUp 320ms ease-out;
}

.results-section.active {
    display: block;
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
    margin-bottom: var(--sp-6);
    padding-bottom: var(--sp-4);
    border-bottom: 1px solid var(--line);
    flex-wrap: wrap;
}

.results-title {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 400;
    font-style: italic;
    letter-spacing: -0.015em;
    color: var(--text);
}

.results-title-mark {
    color: var(--accent);
    font-size: 0.625rem;
    font-style: normal;
    line-height: 1;
    display: inline-block;
    transform: translateY(-4px);
}

.results-actions {
    display: flex;
    gap: var(--sp-2);
    flex-wrap: wrap;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    padding: 0.625rem var(--sp-4);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--r-md);
    cursor: pointer;
    transition: background var(--t-base), border-color var(--t-base), color var(--t-base);
    white-space: nowrap;
}

.btn svg {
    width: 16px;
    height: 16px;
}

.btn-primary {
    background: var(--accent);
    color: #0a0a08;
    border-color: var(--accent);
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-ghost {
    background: transparent;
    color: var(--text-dim);
    border-color: var(--line-strong);
}

.btn-ghost:hover {
    background: var(--bg-card);
    color: var(--text);
    border-color: var(--text-dim);
}

.btn-sm {
    padding: 0.375rem 0.625rem;
    font-size: 0.75rem;
}

.btn-sm svg {
    width: 14px;
    height: 14px;
}

.spin {
    animation: arcSpin 0.9s linear infinite;
}

/* === Results Summary === */
.results-summary {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    margin-bottom: var(--sp-6);
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    overflow: hidden;
}

@media (max-width: 640px) {
    .results-summary {
        grid-template-columns: repeat(2, 1fr);
    }
}

.summary-card {
    background: var(--bg-elev);
    padding: var(--sp-4) var(--sp-3);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-2);
    transition: background var(--t-base);
}

.summary-card:hover {
    background: var(--bg-card-hover);
}

.summary-icon {
    width: 16px;
    height: 16px;
    color: var(--accent);
}

.summary-icon svg {
    width: 100%;
    height: 100%;
    stroke-width: 1.5;
}

.summary-value {
    font-family: var(--font-display);
    font-size: 1.875rem;
    font-weight: 400;
    color: var(--text);
    line-height: 1;
    letter-spacing: -0.02em;
}

.summary-label {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    color: var(--text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    line-height: 1.4;
}

.summary-label br {
    display: block;
    content: '';
    margin-bottom: 1px;
}

/* === File Details === */
.file-details-section {
    background: var(--bg-elev);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    overflow: hidden;
}

.file-details-title {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: var(--sp-3) var(--sp-4);
    border-bottom: 1px solid var(--line);
    background: var(--bg-inset);
}

.file-details-grid {
    display: flex;
    flex-direction: column;
}

.file-detail-card {
    padding: var(--sp-4);
    border-bottom: 1px solid var(--line);
    animation: cardEnter 280ms ease-out both;
    transition: background var(--t-base);
}

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

.file-detail-card:hover {
    background: var(--bg-card-hover);
}

@keyframes cardEnter {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.file-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--sp-3);
    margin-bottom: var(--sp-3);
    flex-wrap: wrap;
}

.file-name-transform {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--text);
    word-break: break-all;
    flex: 1;
    min-width: 0;
}

.file-detail-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--sp-2) var(--sp-5);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    line-height: 1.5;
    word-break: break-all;
}

.detail-item svg {
    width: 13px;
    height: 13px;
    flex-shrink: 0;
    stroke-width: 1.5;
    color: var(--text-subtle);
}

.detail-item.detail-success {
    color: var(--accent);
}

.detail-item.detail-success svg {
    color: var(--accent);
}

.detail-hash {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 13px;
    height: 13px;
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--text-subtle);
    flex-shrink: 0;
}

/* === Footer === */
.footer {
    padding: var(--sp-7) 0 var(--sp-5);
    margin-top: var(--sp-7);
    border-top: 1px solid var(--line);
    color: var(--text-subtle);
    font-size: 0.8125rem;
}

.footer p {
    margin-bottom: var(--sp-1);
}

.footer-small {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* === Utility === */
.hidden {
    display: none !important;
}

.slide-up {
    animation: fadeUp 320ms ease-out both;
}

/* === Responsive === */
@media (max-width: 640px) {
    .hero {
        padding: var(--sp-5) 0 var(--sp-6);
    }
    .upload-zone {
        padding: var(--sp-7) var(--sp-4);
    }
    .results-header {
        flex-direction: column;
        align-items: stretch;
    }
    .results-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
    .btn {
        justify-content: center;
    }
    .file-detail-info {
        grid-template-columns: 1fr;
    }
}