:root {
    --bg: #08110f;
    --surface: rgba(14, 24, 22, 0.85);
    --surface-strong: rgba(20, 33, 30, 0.95);
    --surface-hover: rgba(28, 44, 40, 0.9);
    --text: #e8e8f0;
    --muted: #7aa199;
    --accent: #2dd4bf;
    --accent-glow: rgba(45, 212, 191, 0.35);
    --accent-2: #67e8f9;
    --accent-2-glow: rgba(103, 232, 249, 0.32);
    --danger: #f26b6b;
    --border: rgba(255, 255, 255, 0.07);
    --border-accent: rgba(45, 212, 191, 0.4);
    --shadow: 0 32px 80px rgba(0, 0, 0, 0.7);
    --radius-xl: 24px;
    --radius-lg: 16px;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
    font-family: "Space Grotesk", "Inter", "Avenir Next", "Segoe UI", sans-serif;
    color: var(--text);
    background: var(--bg);
}

body {
    padding: 24px;
    overflow-x: hidden;
}

/* Animated background grid */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(45, 212, 191, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(45, 212, 191, 0.05) 1px, transparent 1px);
    background-size: 48px 48px;
    z-index: -2;
    animation: gridPan 30s linear infinite;
}

@keyframes gridPan {
    0%   { background-position: 0 0; }
    100% { background-position: 48px 48px; }
}

/* Ambient orbs */
.ambient-shape {
    position: fixed;
    border-radius: 999px;
    pointer-events: none;
    z-index: -1;
    animation: drift 18s ease-in-out infinite;
}

.shape-a {
    width: 520px;
    height: 520px;
    background: radial-gradient(circle at 40% 40%, rgba(45, 212, 191, 0.22), transparent 70%);
    top: -180px;
    right: -160px;
    filter: blur(2px);
}

.shape-b {
    width: 480px;
    height: 480px;
    background: radial-gradient(circle at 55% 55%, rgba(103, 232, 249, 0.18), transparent 70%);
    bottom: -160px;
    left: -140px;
    filter: blur(2px);
    animation-delay: -7s;
}

.shape-c {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle at 50% 50%, rgba(242, 107, 107, 0.1), transparent 70%);
    top: 40%;
    left: 55%;
    filter: blur(2px);
    animation-delay: -13s;
    animation-duration: 22s;
}

@keyframes drift {
    0%, 100% { transform: translateY(0) translateX(0) scale(1); }
    33%       { transform: translateY(-20px) translateX(12px) scale(1.06); }
    66%       { transform: translateY(10px) translateX(-8px) scale(0.97); }
}

/* Card */
.app {
    max-width: 860px;
    margin: 0 auto;
    background: var(--surface);
    backdrop-filter: blur(24px) saturate(160%);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow), 0 0 0 1px rgba(45, 212, 191, 0.1), inset 0 1px 0 rgba(255,255,255,0.06);
    padding: clamp(24px, 4vw, 40px);
    animation: reveal 500ms cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes reveal {
    from { opacity: 0; transform: translateY(18px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Header */
.header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 8px;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), #5eead4);
    box-shadow: 0 0 20px var(--accent-glow);
    flex-shrink: 0;
    animation: iconPulse 3s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% { box-shadow: 0 0 20px var(--accent-glow); }
    50%       { box-shadow: 0 0 36px rgba(45, 212, 191, 0.62); }
}

.logo-icon svg {
    width: 22px;
    height: 22px;
    fill: #fff;
}

.headline {
    margin: 0 0 4px;
    font-size: clamp(1.5rem, 3.2vw, 2.1rem);
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #e8e8f0 30%, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subline {
    margin: 0;
    color: var(--muted);
    line-height: 1.5;
    font-size: 0.95rem;
}

/* Drop zone */
.drop-zone {
    display: block;
    margin-top: 28px;
    border: 1.5px dashed rgba(45, 212, 191, 0.4);
    border-radius: var(--radius-lg);
    background: linear-gradient(160deg, rgba(45, 212, 191, 0.06), rgba(103, 232, 249, 0.04));
    padding: clamp(32px, 5vw, 60px) clamp(20px, 4vw, 48px);
    text-align: center;
    transition: transform 200ms cubic-bezier(0.22, 1, 0.36, 1),
                border-color 200ms ease,
                background 200ms ease,
                box-shadow 200ms ease;
    cursor: pointer;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.drop-zone::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(45, 212, 191, 0.12), transparent 65%);
    opacity: 0;
    transition: opacity 300ms ease;
}

.drop-zone:hover::before,
.drop-zone.dragging::before {
    opacity: 1;
}

.drop-zone:hover {
    transform: translateY(-2px);
    border-color: rgba(45, 212, 191, 0.72);
    box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.14), 0 12px 40px rgba(0, 0, 0, 0.3);
}

.drop-zone.dragging {
    transform: translateY(-3px) scale(1.01);
    border-color: var(--accent-2);
    background: linear-gradient(160deg, rgba(103, 232, 249, 0.11), rgba(45, 212, 191, 0.08));
    box-shadow: 0 0 0 4px var(--accent-2-glow), 0 16px 48px rgba(0, 0, 0, 0.4);
}

.drop-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.drop-text {
    text-align: left;
}

.drop-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(45, 212, 191, 0.14);
    border: 1px solid rgba(45, 212, 191, 0.28);
    flex-shrink: 0;
    transition: transform 200ms ease, background 200ms ease;
}

.drop-zone:hover .drop-icon,
.drop-zone.dragging .drop-icon {
    transform: scale(1.1);
    background: rgba(45, 212, 191, 0.24);
}

.drop-icon svg {
    width: 26px;
    height: 26px;
    stroke: var(--accent);
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.drop-zone h2 {
    margin: 0 0 4px;
    font-size: clamp(1.05rem, 2.4vw, 1.35rem);
    letter-spacing: -0.02em;
    color: var(--text);
}

.drop-zone p {
    margin: 0 0 12px;
    color: var(--muted);
    line-height: 1.5;
    font-size: 0.9rem;
}

.drop-zone .hint {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.85rem;
    background: rgba(45, 212, 191, 0.14);
    border: 1px solid rgba(45, 212, 191, 0.26);
    border-radius: 999px;
    padding: 4px 12px;
    transition: background 200ms ease;
}

.drop-zone:hover .hint {
    background: rgba(45, 212, 191, 0.22);
}

/* Status chips */
.status-row {
    margin-top: 20px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.chip {
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 7px 14px;
    font-size: 0.85rem;
    color: var(--muted);
    transition: color 200ms ease, border-color 200ms ease, background 200ms ease;
}

.chip.active {
    color: var(--accent);
    border-color: rgba(45, 212, 191, 0.42);
    background: rgba(45, 212, 191, 0.12);
}

.chip.error {
    border-color: rgba(242, 107, 107, 0.35);
    color: var(--danger);
    background: rgba(242, 107, 107, 0.08);
}

/* Result list */
.list {
    margin-top: 18px;
    max-height: 260px;
    overflow: auto;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: rgba(8, 16, 14, 0.55);
    scrollbar-width: thin;
    scrollbar-color: rgba(45, 212, 191, 0.4) transparent;
}

.list::-webkit-scrollbar { width: 5px; }
.list::-webkit-scrollbar-track { background: transparent; }
.list::-webkit-scrollbar-thumb { background: rgba(45, 212, 191, 0.4); border-radius: 999px; }

.list-item {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    opacity: 0;
    transform: translateX(-8px);
    animation: staggerIn 320ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
    transition: background 180ms ease;
}

.list-item:hover {
    background: rgba(45, 212, 191, 0.08);
}

.list-item:last-child {
    border-bottom: none;
}

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

.list-item .name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.9rem;
    color: var(--text);
}

.list-item .badge {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--accent-2);
    background: rgba(103, 232, 249, 0.14);
    border: 1px solid rgba(103, 232, 249, 0.28);
    border-radius: 999px;
    padding: 3px 10px;
    flex-shrink: 0;
}

.list-item .badge.skipped {
    color: var(--muted);
    background: rgba(102, 139, 132, 0.12);
    border-color: rgba(102, 139, 132, 0.24);
}

.list-item .badge.error {
    color: var(--danger);
    background: rgba(242, 107, 107, 0.1);
    border-color: rgba(242, 107, 107, 0.2);
}

/* Divider */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
    margin: 28px 0 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 640px) {
    body { padding: 14px; }
    .app { border-radius: 18px; padding: 18px; }
    .drop-zone { padding: 28px 16px; }
}