/* ============================================================
   FZ.BADUSB — Payload Generator UI
   Cyberpunk terminal aesthetic, Flipper Zero brand colors.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=VT323&family=IBM+Plex+Mono:wght@300;400;500;600;700&display=swap');

:root {
    /* core */
    --bg:            #0a0806;
    --bg-grid:       rgba(255, 122, 26, 0.035);
    --surface:       #14100c;
    --surface-2:     #1c1610;
    --surface-3:     #251d15;
    --border:        #2a221b;
    --border-hot:    #4a382a;

    /* flipper orange */
    --accent:        #ff7a1a;
    --accent-bright: #ffa050;
    --accent-dim:    #c25a0c;
    --accent-soft:   rgba(255, 122, 26, 0.12);
    --accent-glow:   rgba(255, 122, 26, 0.45);

    /* phosphor */
    --phosphor:      #6cf2c1;
    --phosphor-dim:  rgba(108, 242, 193, 0.5);

    /* text */
    --text:          #f5ede1;
    --text-dim:      #a89c8e;
    --text-mute:     #6b5f54;
    --text-faint:    #443a32;

    /* danger */
    --danger:        #ff3d57;

    /* fonts */
    --font-display: 'VT323', 'Courier New', monospace;
    --font-mono:    'IBM Plex Mono', 'Menlo', 'Consolas', monospace;

    /* metrics */
    --radius:        0px;
    --tap:           34px;
}

/* ============================ Reset & base ============================ */

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

html, body { height: 100%; }

body {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.45;
    color: var(--text);
    background-color: var(--bg);
    background-image:
        linear-gradient(var(--bg-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px),
        radial-gradient(circle at 20% -10%, rgba(255, 122, 26, 0.08), transparent 50%),
        radial-gradient(circle at 90% 110%, rgba(108, 242, 193, 0.04), transparent 50%);
    background-size: 32px 32px, 32px 32px, 100% 100%, 100% 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* CRT scanlines overlay — subtle */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 0px,
        rgba(0, 0, 0, 0) 2px,
        rgba(0, 0, 0, 0.18) 3px,
        rgba(0, 0, 0, 0) 4px
    );
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: multiply;
    opacity: 0.55;
}

/* vignette */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,0.55) 100%);
    pointer-events: none;
    z-index: 9998;
}

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

/* ============================ Top status strip ============================ */

.sys-strip {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.35rem 1.2rem;
    background: #000;
    border-bottom: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
    overflow: hidden;
    white-space: nowrap;
}

.sys-strip .seg {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.sys-strip .seg + .seg::before {
    content: '/';
    color: var(--text-faint);
    margin-right: 0.45rem;
}

.sys-strip .dot {
    width: 7px;
    height: 7px;
    background: var(--phosphor);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--phosphor-dim);
    animation: pulse 1.8s ease-in-out infinite;
}

.sys-strip .dot.warn { background: var(--accent); box-shadow: 0 0 8px var(--accent-glow); }

.sys-strip .marquee {
    margin-left: auto;
    color: var(--text-mute);
    overflow: hidden;
    max-width: 40%;
    text-overflow: ellipsis;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.3; }
}

/* ============================ Header / hero ============================ */

header {
    position: relative;
    z-index: 2;
    padding: 2rem 1.5rem 1.6rem;
    border-bottom: 1px solid var(--border);
    background:
        linear-gradient(180deg, rgba(255,122,26,0.05) 0%, transparent 100%),
        repeating-linear-gradient(90deg, transparent 0 3px, rgba(255,122,26,0.02) 3px 4px);
    overflow: hidden;
}

header::before {
    /* faint hatched accent in bg */
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: 40%;
    background-image: repeating-linear-gradient(135deg,
        transparent 0 6px,
        rgba(255,122,26,0.04) 6px 7px);
    pointer-events: none;
    mask-image: linear-gradient(90deg, transparent, #000);
}

.header-container {
    max-width: 1320px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 1.4rem;
    position: relative;
}

.header-logo {
    height: 64px;
    width: 64px;
    object-fit: contain;
    image-rendering: pixelated;
    padding: 6px;
    background: var(--surface);
    border: 1px solid var(--border-hot);
    box-shadow:
        inset 0 0 0 1px rgba(255,122,26,0.08),
        0 0 0 4px var(--bg),
        0 0 24px rgba(255,122,26,0.18);
}

.title-group {
    text-align: left;
    min-width: 0;
}

.title-group .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.title-group .eyebrow::before {
    content: '';
    width: 22px;
    height: 1px;
    background: var(--accent);
}

.title-group h1 {
    margin: 0;
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(2.2rem, 4.6vw, 3.6rem);
    line-height: 0.9;
    letter-spacing: 0.02em;
    color: var(--text);
    text-transform: uppercase;
    text-shadow: 0 0 22px rgba(255, 122, 26, 0.25);
}

.title-group h1 .accent {
    color: var(--accent);
    text-shadow: 0 0 14px var(--accent-glow);
}

.title-group h1 .blink {
    display: inline-block;
    width: 0.55ch;
    height: 0.78em;
    background: var(--accent);
    margin-left: 0.05em;
    transform: translateY(0.05em);
    animation: caret 1s steps(2) infinite;
}

@keyframes caret {
    0%, 49%   { opacity: 1; }
    50%, 100% { opacity: 0; }
}

.title-group p {
    margin: 0.55rem 0 0;
    font-size: 13px;
    color: var(--text-dim);
    letter-spacing: 0.02em;
}

.title-group p::before {
    content: '> ';
    color: var(--accent);
}

/* ============================ Main layout ============================ */

main {
    position: relative;
    z-index: 1;
    padding: 1.5rem 1.2rem 4.5rem;
}

#main-container {
    max-width: 1320px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 1.4rem;
    align-items: start;
}

/* ============================ Panels ============================ */

#commands-section,
#output-section-right {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow:
        0 0 0 1px rgba(0,0,0,0.4),
        0 30px 60px -30px rgba(0,0,0,0.7);
    position: relative;
}

#commands-section::before,
#output-section-right::before {
    /* corner brackets */
    content: '';
    position: absolute;
    top: -1px; left: -1px;
    width: 14px; height: 14px;
    border-top: 1px solid var(--accent);
    border-left: 1px solid var(--accent);
    pointer-events: none;
}

#commands-section::after,
#output-section-right::after {
    content: '';
    position: absolute;
    bottom: -1px; right: -1px;
    width: 14px; height: 14px;
    border-bottom: 1px solid var(--accent);
    border-right: 1px solid var(--accent);
    pointer-events: none;
}

.panel-head {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    background:
        linear-gradient(90deg, var(--surface-2), var(--surface));
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--text-dim);
}

.panel-head .tag {
    color: var(--accent);
    font-weight: 600;
}

.panel-head h2 {
    margin: 0;
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--text);
}

.panel-head .meta {
    margin-left: auto;
    color: var(--text-mute);
    font-size: 10px;
}

.panel-body { padding: 0.9rem; }

/* legacy h2 hooks (we keep tags but hide native h2 inside panel-head) */
#commands-section h2,
#output-section-right h2 { all: unset; }

/* ============================ Command grid ============================ */

.commands-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.85rem;
    align-items: start;
}

.command-column {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    min-width: 0;
}

.command-group {
    position: relative;
    background: var(--surface-2);
    border: 1px solid var(--border);
    padding: 0.7rem 0.75rem 0.85rem;
    transition: border-color 200ms ease, background 200ms ease, transform 200ms ease;
}

.command-group::before {
    /* left accent bar */
    content: '';
    position: absolute;
    left: -1px;
    top: 18px;
    width: 2px;
    height: 14px;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
    transition: height 200ms ease;
}

.command-group:hover {
    border-color: var(--border-hot);
    background: var(--surface-3);
}

.command-group:hover::before { height: 28px; }

.command-group h3 {
    display: flex;
    align-items: baseline;
    gap: 0.55rem;
    margin: 0 0 0.5rem;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--text);
}

.command-group h3::before {
    content: attr(data-idx);
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent);
    background: rgba(255,122,26,0.08);
    border: 1px solid rgba(255,122,26,0.25);
    padding: 1px 5px;
    letter-spacing: 0.1em;
}

.info-text {
    font-size: 11.5px;
    color: var(--text-mute);
    margin: 0 0 0.5rem;
    line-height: 1.45;
    letter-spacing: 0.01em;
}

.info-text + .info-text { margin-top: 0.65rem; }

/* ============================ Form controls ============================ */

textarea, input {
    width: 100%;
    padding: 0.5rem 0.6rem;
    margin: 0 0 0.45rem;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 12.5px;
    line-height: 1.4;
    resize: vertical;
    transition: border-color 150ms ease, box-shadow 150ms ease, background 150ms ease;
    caret-color: var(--accent);
}

textarea::placeholder, input::placeholder {
    color: var(--text-faint);
    font-style: normal;
}

textarea:focus, input:focus {
    border-color: var(--accent);
    outline: none;
    background: #0d0a08;
    box-shadow:
        0 0 0 1px var(--accent),
        0 0 16px -2px var(--accent-glow);
}

/* number input — strip native arrows for cleaner look */
input[type=number]::-webkit-outer-spin-button,
input[type=number]::-webkit-inner-spin-button {
    -webkit-appearance: none; margin: 0;
}
input[type=number] { -moz-appearance: textfield; appearance: textfield; }

/* ============================ Buttons ============================ */

button {
    appearance: none;
    -webkit-appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: var(--tap);
    padding: 0.45rem 0.7rem;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text);
    background: transparent;
    border: 1px solid var(--border-hot);
    border-radius: var(--radius);
    cursor: pointer;
    margin: 0;
    transition:
        background 150ms ease,
        color 150ms ease,
        border-color 150ms ease,
        transform 60ms ease,
        box-shadow 200ms ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

button::before {
    /* subtle inner highlight on hover */
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.06), transparent 40%);
    opacity: 0;
    transition: opacity 150ms ease;
    pointer-events: none;
}

button:hover {
    color: var(--accent-bright);
    border-color: var(--accent);
    background: rgba(255,122,26,0.06);
    box-shadow: 0 0 0 1px rgba(255,122,26,0.15), 0 0 18px -4px var(--accent-glow);
}

button:hover::before { opacity: 1; }

button:active {
    transform: translateY(1px);
    background: rgba(255,122,26,0.1);
}

button:focus-visible {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--bg), 0 0 0 3px var(--accent);
}

/* primary action buttons — filled orange */
.primary-btn {
    width: 100%;
    margin-top: 0.35rem;
    background: var(--accent);
    color: #110a04;
    border-color: var(--accent);
    font-weight: 600;
    letter-spacing: 0.12em;
}

.primary-btn::after {
    /* glyph */
    content: '→';
    font-family: var(--font-mono);
    margin-left: 0.5rem;
    transition: transform 200ms ease;
}

.primary-btn:hover {
    background: var(--accent-bright);
    color: #110a04;
    border-color: var(--accent-bright);
    box-shadow: 0 0 0 1px var(--accent), 0 0 28px -4px var(--accent-glow);
}

.primary-btn:hover::after { transform: translateX(3px); }

.primary-btn:active {
    background: var(--accent-dim);
    color: #050302;
}

/* ============================ Specialized groups ============================ */

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-bottom: 0.2rem;
}

.btn-group button {
    flex: 1 1 auto;
    min-width: 54px;
    padding: 0.4rem 0.5rem;
    font-size: 11.5px;
    letter-spacing: 0.06em;
}

/* arrow keys cluster — keyboard-like */
.arrow-keys {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.3rem 0;
}

.arrow-row {
    display: flex;
    gap: 0.25rem;
    margin: 0;
}

.arrow-row button {
    width: 42px;
    height: 38px;
    min-width: unset;
    font-size: 18px;
    padding: 0;
    font-family: var(--font-display);
}

/* media keys */
.media-layout {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    align-items: stretch;
    margin-top: 0.15rem;
}

.media-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0.3rem;
    align-items: center;
}

.media-row button {
    height: 36px;
    min-width: unset;
    padding: 0;
    font-size: 15px;
}

.media-row .spacer { height: 0; }

/* function keys */
.function-keys {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.3rem;
}

.function-keys button {
    min-width: 0;
    padding: 0.45rem 0.2rem;
    font-size: 11px;
    font-weight: 600;
}

/* ============================ Output / terminal ============================ */

#output-section-right { position: sticky; top: 1rem; }

#output-section-right .panel-body {
    padding: 0;
    background: #060403;
    position: relative;
}

#output {
    width: 100%;
    min-height: 460px;
    padding: 1rem 1rem 1rem 3rem;
    background:
        linear-gradient(180deg, rgba(255,122,26,0.04), transparent 40%),
        repeating-linear-gradient(
            to bottom,
            transparent 0 22px,
            rgba(255,255,255,0.012) 22px 23px
        ),
        #060403;
    color: var(--accent-bright);
    border: none;
    margin: 0;
    font-family: var(--font-mono);
    font-size: 12.5px;
    line-height: 1.65;
    letter-spacing: 0.01em;
    text-shadow: 0 0 6px rgba(255, 122, 26, 0.35);
    resize: vertical;
    caret-color: var(--accent);
}

#output:focus {
    outline: none;
    box-shadow: inset 0 0 0 1px var(--accent), inset 0 0 30px -10px var(--accent-glow);
}

#output::placeholder {
    color: var(--text-faint);
    font-style: italic;
}

/* terminal gutter (visual only) */
.terminal-wrap {
    position: relative;
}

.terminal-wrap::before {
    content: '';
    position: absolute;
    top: 0; left: 0; bottom: 0;
    width: 2.4rem;
    background:
        linear-gradient(180deg, var(--surface-2), var(--surface));
    border-right: 1px solid var(--border);
    pointer-events: none;
}

.terminal-wrap::after {
    content: '$_';
    position: absolute;
    top: 0.85rem; left: 0.7rem;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    pointer-events: none;
    animation: caret 1.1s steps(2) infinite;
}

.terminal-bar {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.85rem;
    border-top: 1px solid var(--border);
    background: var(--surface);
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-mute);
}

.terminal-bar .stat {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.terminal-bar .stat strong {
    color: var(--accent);
    font-weight: 600;
}

.terminal-bar .spacer { flex: 1; }

.output-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    padding: 0.85rem;
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.output-actions .primary-btn {
    margin: 0;
}

.output-actions .icon-btn {
    grid-column: 1 / -1;
    width: 100%;
    margin: 0;
    border-style: dashed;
    border-color: var(--border-hot);
    color: var(--text-dim);
    background: transparent;
}

.output-actions .icon-btn:hover {
    border-style: dashed;
    color: var(--danger);
    border-color: var(--danger);
    background: rgba(255, 61, 87, 0.06);
    box-shadow: 0 0 0 1px rgba(255,61,87,0.15), 0 0 16px -4px rgba(255,61,87,0.4);
}

/* ============================ Floating notes ============================ */

.floating-note-github,
.floating-note {
    position: fixed;
    right: 16px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: var(--surface-2);
    border: 1px solid var(--border-hot);
    padding: 0.4rem 0.7rem;
    box-shadow: 0 8px 30px -8px rgba(0,0,0,0.7);
    z-index: 50;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: border-color 150ms ease, background 150ms ease, transform 200ms ease;
}

.floating-note-github:hover,
.floating-note:hover {
    border-color: var(--accent);
    background: var(--surface-3);
    transform: translateY(-2px);
}

.floating-note-github { bottom: 56px; }
.floating-note { bottom: 14px; }

.github-link,
.fz-doc-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--text);
    text-decoration: none;
}

.github-link:hover { color: var(--accent); }
.fz-doc-link { color: var(--accent); }
.fz-doc-link:hover { color: var(--accent-bright); }

.floating-note-github svg { color: var(--text); }
.floating-note-github:hover svg { color: var(--accent); }

/* ============================ Footer ============================ */

footer {
    position: relative;
    z-index: 1;
    padding: 0.75rem 1.2rem;
    color: var(--text-mute);
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    text-align: center;
    border-top: 1px solid var(--border);
    background: #050403;
}

footer .marker {
    color: var(--accent);
    margin: 0 0.3rem;
}

/* ============================ Responsive ============================ */

@media (max-width: 1080px) {
    #main-container { grid-template-columns: 1fr; }
    #output-section-right { position: static; }
    .commands-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
    .header-container {
        grid-template-columns: auto 1fr;
        row-gap: 1rem;
    }
    .title-group h1 { font-size: 2rem; }
    .commands-grid { grid-template-columns: 1fr; }
    .sys-strip .marquee { display: none; }
    main { padding: 1rem 0.75rem 5rem; }
    .floating-note-github, .floating-note {
        right: 10px;
        left: 10px;
        justify-content: center;
    }
}

/* ============================ Reduced motion ============================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 50ms !important;
    }
    body::before { display: none; }
}