/* ============================================
   WinKeyStore — "Midnight Glass" Theme
   High-contrast dark theme with frosted glass
   ============================================ */

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

:root {
    --bg: #07090f;
    --bg-gradient: radial-gradient(ellipse 80% 60% at 50% 20%, #111828 0%, #07090f 70%);
    --surface: rgba(17, 22, 35, 0.7);
    --surface-solid: #111623;
    --surface-raised: rgba(24, 30, 48, 0.8);
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --border-focus: rgba(251, 191, 36, 0.3);

    /* HIGH CONTRAST text */
    --text: #f1f3f8;
    --text-secondary: #9ba3b5;
    --text-dim: #5e6a80;

    /* Warm amber accent */
    --accent: #fbbf24;
    --accent-hover: #f59e0b;
    --accent-dim: rgba(251, 191, 36, 0.08);
    --accent-glow: rgba(251, 191, 36, 0.12);
    --accent-text: #0c0f16;

    /* Status */
    --success: #34d399;
    --success-dim: rgba(52, 211, 153, 0.1);
    --error: #fb7185;
    --error-dim: rgba(251, 113, 133, 0.1);

    --radius: 16px;
    --radius-sm: 10px;
    --font-display: "Outfit", system-ui, -apple-system, sans-serif;
    --font-mono: "JetBrains Mono", "SF Mono", monospace;

    --blur: blur(20px);
}

/* ---- Base ---- */

body {
    font-family: var(--font-display);
    background: var(--bg);
    background-image: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---- Backgrounds ---- */

.grid-bg {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 60% 50% at 50% 0%, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 0%, black 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.noise {
    position: fixed;
    inset: 0;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    pointer-events: none;
    z-index: 0;
}

/* ---- Container ---- */

.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 480px;
    animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

main {
    display: grid;
    gap: 18px;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- Accent bar ---- */

.accent-bar {
    width: 40px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
    margin: 0 auto 32px;
    box-shadow: 0 0 12px var(--accent-glow);
}

/* ---- Header ---- */

header {
    text-align: center;
    margin-bottom: 36px;
}

.logo-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 10px;
}

.logo-icon {
    flex-shrink: 0;
}

h1 {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 0.2px;
}

/* ---- Form card ---- */

form {
    background: var(--surface);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    position: relative;
    transition: border-color 0.3s ease;
}

form:focus-within {
    border-color: var(--border-hover);
}

/* Ambient glow behind form */
form::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: var(--radius);
    background: radial-gradient(ellipse 70% 40% at 50% 0%, var(--accent-glow), transparent);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.5s;
}

form:focus-within::before {
    opacity: 1;
}

form::after {
    content: "";
    position: absolute;
    inset: 14px;
    border-radius: calc(var(--radius) - 4px);
    border: 1px solid rgba(255, 255, 255, 0.025);
    pointer-events: none;
}

.input-group {
    position: relative;
}

label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.label-icon {
    display: flex;
    color: var(--accent);
}

/* IID textarea */

textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
    font-family: var(--font-mono);
    font-weight: 400;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    resize: none;
    min-height: 76px;
    transition: border-color 0.2s, box-shadow 0.2s;
    letter-spacing: 0.5px;
    line-height: 1.5;
}

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

textarea::placeholder {
    color: var(--text-dim);
    font-family: var(--font-display);
    font-size: 14px;
    letter-spacing: 0;
}

/* Progress bar */

.progress-track {
    height: 2px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 1px;
    margin-top: 10px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0;
    background: var(--accent);
    border-radius: 1px;
    transition: width 0.15s ease-out;
}

.progress-fill.complete {
    box-shadow: 0 0 10px var(--accent-glow);
}

.progress-fill.error {
    background: var(--error);
}

/* Input meta row */

.input-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    min-height: 20px;
}

.hint {
    font-size: 12px;
    font-weight: 500;
    transition: color 0.2s;
}

.hint-ok { color: var(--success); }
.hint-error { color: var(--error); }
.hint-warning { color: var(--accent); }

.digit-count {
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--text-dim);
}

/* ---- Submit button ---- */

button[type="submit"] {
    width: 100%;
    padding: 14px 20px;
    margin-top: 20px;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font-display);
    color: var(--accent-text);
    background: var(--accent);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: transform 0.15s, box-shadow 0.3s, background 0.2s;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

button[type="submit"]::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, rgba(255, 255, 255, 0.22) 0%, rgba(255, 255, 255, 0.08) 24%, rgba(255, 255, 255, 0) 45%);
    opacity: 0.8;
    pointer-events: none;
    z-index: 0;
}

button[type="submit"]::after {
    content: "";
    position: absolute;
    inset: -40% auto -40% -35%;
    width: 42%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.32), transparent);
    transform: rotate(12deg);
    opacity: 0;
    pointer-events: none;
}

button[type="submit"] > * {
    position: relative;
    z-index: 1;
}

button[type="submit"]:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(251, 191, 36, 0.22);
}

button[type="submit"]:hover:not(:disabled)::after {
    animation: buttonSheen 0.9s ease;
}

button[type="submit"]:active:not(:disabled) {
    transform: translateY(0);
}

button[type="submit"]:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

button[type="submit"].loading {
    background: var(--surface-solid);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-text {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-icon {
    flex-shrink: 0;
}

/* Loading dots */

.btn-loading {
    display: flex;
    align-items: center;
    gap: 6px;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 1.2s ease-in-out infinite;
}

.pulse-dot:nth-child(2) { animation-delay: 0.15s; }
.pulse-dot:nth-child(3) { animation-delay: 0.3s; }

@keyframes pulse {
    0%, 60%, 100% { opacity: 0.2; transform: scale(0.8); }
    30% { opacity: 1; transform: scale(1.1); }
}

@keyframes buttonSheen {
    0% { left: -35%; opacity: 0; }
    15% { opacity: 1; }
    100% { left: 110%; opacity: 0; }
}

.loading-label {
    font-size: 13px;
    margin-left: 4px;
    color: var(--text-secondary);
}

/* ---- Result panel ---- */

.result {
    margin-top: 16px;
    background: var(--surface);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    opacity: 0;
    transform: translateY(8px);
    position: relative;
    overflow: hidden;
}

.result.appear {
    animation: slideIn 0.35s ease-out forwards;
}

.result.success-glow {
    border-color: rgba(52, 211, 153, 0.2);
    box-shadow:
        0 0 40px rgba(52, 211, 153, 0.06),
        0 18px 60px rgba(3, 10, 18, 0.22);
}

.result.success-glow::before {
    content: "";
    position: absolute;
    inset: -1px;
    background: radial-gradient(ellipse at top center, rgba(52, 211, 153, 0.12), transparent 58%);
    pointer-events: none;
    opacity: 0.9;
}

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

.result-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    position: relative;
}

.unlock-icon {
    color: var(--success);
    animation: unlockBounce 0.5s ease-out;
}

@keyframes unlockBounce {
    0% { transform: rotate(-15deg) scale(0.8); opacity: 0; }
    60% { transform: rotate(3deg) scale(1.05); }
    100% { transform: rotate(0) scale(1); opacity: 1; }
}

.result h2 {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.4px;
    color: var(--text-secondary);
    flex: 1;
}

.badge {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--success);
    background: var(--success-dim);
    padding: 3px 8px;
    border-radius: 5px;
    border: 1px solid rgba(52, 211, 153, 0.16);
}

/* CID hint */

.cid-hint {
    font-size: 12px;
    color: var(--text-dim);
    margin-bottom: 12px;
    letter-spacing: 0.2px;
}

/* CID grid — 3 columns, A-H groups */

.cid-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 14px;
}

.cid-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 8px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s, transform 0.1s;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.cid-group:hover {
    border-color: var(--border-hover);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.cid-group:active {
    transform: scale(0.97);
}

.cid-group.copied {
    border-color: var(--success);
    background: var(--success-dim);
}

.cid-group.copied .group-value {
    color: var(--success);
}

.cid-group.copied::after {
    content: 'скопировано';
    position: absolute;
    top: -8px;
    right: -4px;
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--success);
    background: var(--surface-solid);
    border: 1px solid var(--success);
    padding: 1px 5px;
    border-radius: 4px;
    animation: fadeUp 0.2s ease-out;
}

.group-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-dim);
    letter-spacing: 0.5px;
}

.group-value {
    font-size: 18px;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--text);
    letter-spacing: 1px;
}

/* Copy all button */

.copy-all-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 500;
    transition: background 0.15s, color 0.15s;
    position: relative;
    overflow: hidden;
}

.copy-all-btn:hover {
    background: rgba(255, 255, 255, 0.07);
    color: var(--text);
}

.copy-all-btn.copied {
    color: var(--success);
    border-color: rgba(52, 211, 153, 0.3);
}

/* Error */

.error-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--error);
    background: var(--error-dim);
    padding: 14px 16px;
    border-radius: var(--radius-sm);
}

.error-row svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.error-row p {
    font-size: 14px;
    line-height: 1.5;
}

/* ---- Instructions ---- */

.instructions {
    border-radius: var(--radius);
    overflow: hidden;
}

.instructions summary {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 14px 20px;
    background: var(--surface);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    user-select: none;
    transition: color 0.2s, background 0.2s, transform 0.2s, border-color 0.2s;
    list-style: none;
}

.instructions summary::-webkit-details-marker { display: none; }

.instructions summary::after {
    content: "+";
    margin-left: auto;
    font-size: 16px;
    font-weight: 300;
    color: var(--text-dim);
    transition: transform 0.2s;
}

.instructions[open] summary::after {
    transform: rotate(45deg);
}

.instructions summary:hover {
    color: var(--text);
    background: var(--surface-raised);
}

.instructions[open] summary {
    border-radius: var(--radius) var(--radius) 0 0;
    border-bottom-color: transparent;
}

.steps {
    padding: 4px 20px 20px;
    background: var(--surface);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
}

.step + .step {
    border-top: 1px solid var(--border);
}

.step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 7px;
    background: var(--accent-dim);
    color: var(--accent);
    font-size: 11px;
    font-weight: 700;
    font-family: var(--font-mono);
    flex-shrink: 0;
    margin-top: 1px;
}

.step p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.step strong {
    color: var(--text);
    font-weight: 600;
}

/* ---- Downloads ---- */

.download-list {
    padding: 4px 20px 20px;
    background: var(--surface);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
}

.download-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
}

.download-item + .download-item {
    border-top: 1px solid var(--border);
}

.download-note + .download-item {
    border-top: 1px solid var(--border);
}

.download-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 7px;
    background: var(--accent-dim);
    color: var(--accent);
    font-size: 11px;
    font-weight: 700;
    font-family: var(--font-mono);
    flex-shrink: 0;
    margin-top: 2px;
}

.download-info {
    flex: 1;
    min-width: 0;
}

.download-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 4px;
}

.download-meta {
    color: var(--text-dim);
    font-weight: 400;
    font-size: 12px;
}

.download-info a {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    color: var(--accent);
    text-decoration: none;
    padding: 3px 10px;
    border: 1px solid var(--accent-dim);
    border-radius: 6px;
    transition: background 0.15s, border-color 0.15s;
}

.download-info a:hover {
    background: var(--accent-dim);
    border-color: var(--accent);
}

.download-links {
    display: flex;
    gap: 8px;
}

.download-note {
    padding: 9px 12px;
    margin: 8px 0;
    background: rgba(251, 191, 36, 0.035);
    border: 1px solid rgba(251, 191, 36, 0.09);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.download-note strong {
    color: var(--accent);
    font-weight: 600;
}

/* ---- Footer ---- */

footer {
    text-align: center;
    margin-top: 40px;
    padding-bottom: 8px;
}

footer p {
    font-size: 12px;
    letter-spacing: 0.3px;
    color: var(--text-dim);
}

.social-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 14px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 999px;
    text-decoration: none;
    transition: transform 0.15s ease, border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.social-link:hover {
    color: var(--accent);
    border-color: rgba(251, 191, 36, 0.24);
    background: rgba(251, 191, 36, 0.08);
    transform: translateY(-1px);
}

.social-link:active {
    transform: translateY(0);
}

/* ---- Mobile ---- */

@media (max-width: 480px) {
    body { padding: 16px 12px; }

    .accent-bar { margin-bottom: 24px; }

    h1 { font-size: 24px; }

    .logo-icon { width: 26px; height: 26px; }

    form { padding: 20px 18px; }

    textarea {
        font-size: 15px;
        padding: 12px 14px;
        min-height: 68px;
    }

    button[type="submit"] {
        padding: 13px 16px;
        font-size: 14px;
    }

    .result { padding: 18px; }

    .cid-grid { gap: 6px; }
    .group-value { font-size: 16px; }
    .cid-group { padding: 8px 6px; }

    .grid-bg { background-size: 40px 40px; }
}

/* ---- Large screens ---- */

@media (min-width: 640px) {
    .container { max-width: 620px; }
    h1 { font-size: 34px; }
    .subtitle { font-size: 16px; }
    form { padding: 34px 30px; }
    textarea {
        min-height: 84px;
        font-size: 17px;
    }
    button[type="submit"] {
        padding: 15px 22px;
        font-size: 16px;
    }
    .instructions summary {
        font-size: 14px;
        padding: 16px 22px;
    }
    .steps,
    .download-list {
        padding: 6px 22px 22px;
    }
    .step p,
    .download-name {
        font-size: 15px;
    }
    .download-info a {
        font-size: 14px;
    }
    .instructions summary,
    .result,
    form {
        box-shadow: 0 18px 50px rgba(3, 6, 16, 0.22);
    }
    footer {
        margin-top: 46px;
    }
}

@media (min-width: 1100px) {
    body {
        padding: 36px 24px;
    }

    .container {
        max-width: 760px;
    }

    .container::before,
    .container::after {
        content: "";
        position: absolute;
        inset: auto;
        border-radius: 999px;
        pointer-events: none;
        z-index: -1;
        filter: blur(10px);
    }

    .container::before {
        width: 420px;
        height: 420px;
        top: 110px;
        left: 50%;
        transform: translateX(-50%);
        background: radial-gradient(circle, rgba(251, 191, 36, 0.09) 0%, rgba(251, 191, 36, 0.02) 42%, transparent 72%);
    }

    .container::after {
        width: 620px;
        height: 180px;
        top: 220px;
        left: 50%;
        transform: translateX(-50%);
        background: radial-gradient(ellipse, rgba(66, 88, 140, 0.16) 0%, transparent 72%);
    }

    .accent-bar {
        width: 48px;
        margin-bottom: 36px;
    }

    header {
        margin-bottom: 42px;
        position: relative;
    }

    header::after {
        content: "";
        position: absolute;
        left: 50%;
        bottom: -16px;
        width: 120px;
        height: 1px;
        transform: translateX(-50%);
        background: linear-gradient(90deg, transparent, rgba(251, 191, 36, 0.38), transparent);
    }

    .logo-row {
        gap: 14px;
        margin-bottom: 12px;
    }

    h1 {
        font-size: 40px;
        letter-spacing: -0.8px;
    }

    .subtitle {
        font-size: 17px;
    }

    form {
        padding: 38px 34px;
        border-radius: 20px;
        background:
            linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0)) padding-box,
            rgba(17, 22, 35, 0.78);
        box-shadow:
            0 26px 90px rgba(2, 6, 18, 0.42),
            0 10px 24px rgba(251, 191, 36, 0.05);
        animation: desktopFloat 9s ease-in-out infinite;
    }

    textarea {
        min-height: 92px;
        padding: 16px 18px;
        font-size: 18px;
        background: rgba(5, 9, 19, 0.58);
    }

    .input-meta {
        margin-top: 10px;
    }

    button[type="submit"] {
        margin-top: 22px;
        padding: 17px 24px;
        font-size: 17px;
    }

    .result {
        margin-top: 18px;
        padding: 28px;
        box-shadow: 0 18px 60px rgba(2, 6, 18, 0.32);
    }

    .result-header {
        margin-bottom: 16px;
    }

    .result h2 {
        font-size: 13px;
        letter-spacing: 1.8px;
    }

    .cid-hint {
        font-size: 13px;
        margin-bottom: 14px;
    }

    .cid-grid {
        gap: 10px;
    }

    .cid-group {
        padding: 12px 10px;
    }

    .group-value {
        font-size: 19px;
    }

    .instructions {
        margin-top: 22px;
    }

    .instructions summary {
        font-size: 15px;
        padding: 17px 22px;
        background:
            linear-gradient(180deg, rgba(255, 255, 255, 0.018), rgba(255, 255, 255, 0)) padding-box,
            rgba(18, 24, 39, 0.78);
        box-shadow: 0 14px 36px rgba(2, 6, 18, 0.18);
    }

    .instructions summary:hover {
        transform: translateY(-1px);
        border-color: rgba(255, 255, 255, 0.1);
    }

    .step,
    .download-item {
        gap: 14px;
        padding: 14px 0;
    }

    .steps,
    .download-list {
        background: rgba(18, 24, 39, 0.82);
        box-shadow: 0 18px 44px rgba(2, 6, 18, 0.2);
    }

    .downloads summary {
        color: #8791a5;
    }

    .downloads summary:hover {
        color: var(--text-secondary);
    }

    .download-list {
        padding-top: 2px;
    }

    .step-num,
    .download-num {
        width: 26px;
        height: 26px;
        font-size: 12px;
    }

    .step p,
    .download-note {
        font-size: 15px;
    }

    .download-item {
        gap: 12px;
        padding: 9px 0;
    }

    .download-name {
        font-size: 14px;
        margin-bottom: 3px;
    }

    .download-meta {
        font-size: 11px;
    }

    .download-info a {
        font-size: 12px;
        padding: 2px 10px;
    }

    footer p {
        font-size: 13px;
    }

    .social-links {
        gap: 12px;
        margin-top: 16px;
    }

    .social-link {
        width: 44px;
        height: 44px;
    }
}

@keyframes desktopFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

/* ---- Accessibility ---- */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    form {
        animation: none !important;
    }
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

textarea:focus-visible {
    outline: none;
}