:root {
    color-scheme: light dark;
    --text: #1c1e26;
    --muted: rgba(28, 30, 38, 0.62);
    --glass-bg: rgba(255, 255, 255, 0.35);
    --glass-bg-strong: rgba(255, 255, 255, 0.55);
    --glass-border: rgba(255, 255, 255, 0.6);
    --glass-shadow: rgba(31, 38, 135, 0.15);
    --accent: #6d28d9;
    --accent-hover: #5b21b6;
    --accent-text: #ffffff;
    --accent-ring: rgba(109, 40, 217, 0.25);
    --success-border: #10b981;
    --success-bg: rgba(16, 185, 129, 0.18);
    --error-border: #ef4444;
    --error-bg: rgba(239, 68, 68, 0.16);
    --info-border: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.16);
    --bg-gradient: linear-gradient(135deg, #a8edea 0%, #fed6e3 30%, #d9c3f5 65%, #8ec5fc 100%);
    --orb-1: rgba(255, 154, 158, 0.5);
    --orb-2: rgba(142, 197, 252, 0.5);
    --orb-3: rgba(224, 195, 252, 0.5);
}

@media (prefers-color-scheme: dark) {
    :root {
        --text: #f4f5f9;
        --muted: rgba(244, 245, 249, 0.62);
        --glass-bg: rgba(255, 255, 255, 0.08);
        --glass-bg-strong: rgba(255, 255, 255, 0.14);
        --glass-border: rgba(255, 255, 255, 0.16);
        --glass-shadow: rgba(0, 0, 0, 0.45);
        --accent: #a78bfa;
        --accent-hover: #c4b5fd;
        --accent-text: #201338;
        --accent-ring: rgba(167, 139, 250, 0.35);
        --success-bg: rgba(16, 185, 129, 0.16);
        --error-bg: rgba(239, 68, 68, 0.18);
        --info-bg: rgba(59, 130, 246, 0.18);
        --bg-gradient: linear-gradient(135deg, #0f0c29 0%, #302b63 45%, #24243e 100%);
        --orb-1: rgba(129, 140, 248, 0.35);
        --orb-2: rgba(236, 72, 153, 0.28);
        --orb-3: rgba(45, 212, 191, 0.28);
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    padding: 3rem 1.25rem;
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.5;
    background-color: #cbb4e8;
    background-image:
        radial-gradient(circle at 15% 20%, var(--orb-1), transparent 40%),
        radial-gradient(circle at 85% 15%, var(--orb-2), transparent 40%),
        radial-gradient(circle at 50% 95%, var(--orb-3), transparent 45%),
        var(--bg-gradient);
    background-attachment: fixed;
    background-size: cover;
}

.container {
    max-width: 640px;
    margin: 0 auto;
}

h1 {
    font-size: 2rem;
    margin: 0 0 1.5rem;
    text-align: center;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.1);
}

h2 {
    font-size: 1.05rem;
    margin: 2rem 0 0.75rem;
    color: var(--muted);
    font-weight: 600;
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 8px 32px var(--glass-shadow);
}

.shorten-form {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 1.5rem;
}

label {
    font-size: 0.85rem;
    color: var(--muted);
    margin-top: 0.6rem;
    font-weight: 500;
}

input[type="url"],
input[type="text"] {
    padding: 0.7rem 0.9rem;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    background: var(--glass-bg-strong);
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
}

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

input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-ring);
}

button {
    margin-top: 1.25rem;
    padding: 0.75rem 1.1rem;
    border: none;
    border-radius: 12px;
    background: var(--accent);
    color: var(--accent-text);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.1s ease;
    font-family: inherit;
}

button:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

button:active {
    transform: translateY(0);
}

.shorten-form button {
    width: 100%;
}

.message {
    margin-top: 1.25rem;
    padding: 1rem 1.25rem;
}

.message-error {
    border-color: var(--error-border);
    background: var(--error-bg);
}

.message-success {
    border-color: var(--success-border);
    background: var(--success-bg);
}

.message-info {
    border-color: var(--info-border);
    background: var(--info-bg);
}

.short-link-row {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.short-link-row input {
    flex: 1;
    font-weight: 600;
}

.short-link-row button {
    margin-top: 0;
    flex-shrink: 0;
    width: auto;
}

.original-url {
    color: var(--muted);
    font-size: 0.85rem;
    margin: 0.6rem 0 0;
    word-break: break-all;
}

.links-list {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.link-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--glass-border);
}

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

.link-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
    gap: 0.15rem;
}

.link-code {
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
}

.link-code:hover {
    text-decoration: underline;
}

.link-url {
    font-size: 0.8rem;
    color: var(--muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 320px;
}

.link-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.link-clicks {
    font-size: 0.8rem;
    color: var(--muted);
    white-space: nowrap;
}

.delete-form {
    margin: 0;
}

.btn-delete {
    margin-top: 0;
    padding: 0.4rem 0.65rem;
    border-radius: 10px;
    background: var(--error-bg);
    color: var(--error-border);
    font-weight: 700;
    font-size: 0.85rem;
    line-height: 1;
    width: auto;
}

.btn-delete:hover {
    background: var(--error-border);
    color: white;
    transform: none;
}

.empty-hint {
    color: var(--muted);
    font-size: 0.9rem;
    padding: 1rem 1.25rem;
    margin: 0;
}

@media (max-width: 480px) {
    .link-url {
        max-width: 150px;
    }

    h1 {
        font-size: 1.6rem;
    }

    body {
        padding: 2rem 0.85rem;
    }
}