/* ── RESPONSIVE CUSTOM PROPERTIES ──────────────────────────────────────── */
/* Base values are desktop; overridden at each breakpoint below.            */

:root {
    --bg: #0a0e0a;
    --surface: #0f1a0f;
    --border: #1a3a1a;
    --green: #00ff41;
    --green-dim: #007a1f;
    --green-glow: rgba(0, 255, 65, 0.15);
    --red: #ff3a3a;
    --yellow: #ffe041;
    --cyan: #41e0ff;
    --text: #c8ffc8;
    --text-dim: #4a7a4a;
}

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

/* Use flex-start + auto margins on children instead of justify-content:
   center so content is still centered when it fits, but scrollable when it
   overflows on small viewports (justify-content:center clips the start
   edge and blocks scroll). */
body {
    background: var(--bg);
    color: var(--text);
    font-family: "Share Tech Mono", monospace;
    min-height: 100vh;
    min-height: 100dvh; /* dynamic viewport on mobile browsers */
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 255, 65, 0.012) 2px,
        rgba(0, 255, 65, 0.012) 4px
    );
    pointer-events: none;
    z-index: 0;
}

/* ── SCREEN SYSTEM ──────────────────────────────────────────────────────── */

.screen {
    position: relative;
    z-index: 1;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    /* auto margins replace justify-content:center on body */
    margin-top: auto;
    margin-bottom: auto;
    animation: screenIn 0.35s ease-out;
}

.screen.hidden {
    display: none;
}

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

/* ── SELECTION SCREEN ───────────────────────────────────────────────────── */

.select-container {
    width: 100%;
    max-width: 820px;
}

.select-header {
    text-align: center;
    margin-bottom: 48px;
}

.brand-logo {
    font-family: "Orbitron", sans-serif;
    font-size: clamp(22px, 6vw, 42px);
    color: var(--green);
    text-shadow:
        0 0 40px var(--green),
        0 0 80px rgba(0, 255, 65, 0.3);
    letter-spacing: clamp(3px, 1.5vw, 8px);
    text-transform: uppercase;
    margin-bottom: 12px;
}
.brand-logo span {
    color: var(--text-dim);
}

.brand-tagline {
    font-size: clamp(9px, 2vw, 11px);
    color: var(--text-dim);
    letter-spacing: clamp(1px, 0.5vw, 3px);
    opacity: 0.7;
    word-break: break-word;
}

.select-prompt {
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 3px;
    margin-bottom: 20px;
    padding-left: 2px;
}

/* ── TOOLS GRID ─────────────────────────────────────────────────────────── */

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.tool-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0;
    cursor: default;
    text-align: left;
    font-family: "Share Tech Mono", monospace;
    transition:
        border-color 0.2s,
        box-shadow 0.2s,
        transform 0.15s;
    position: relative;
    overflow: hidden;
    touch-action: manipulation;
}

.tool-card-inner {
    padding: 18px 20px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    height: 100%;
}

/* scanline sweep on available card hover */
.tool-card.available::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--green), transparent);
    transition: left 0s;
}
.tool-card.available:hover::after {
    left: 100%;
    transition: left 0.5s ease-in-out;
}

.tool-card.available {
    cursor: pointer;
    border-color: var(--border);
}
.tool-card.available:hover {
    border-color: var(--green-dim);
    box-shadow:
        0 0 0 1px var(--green-dim),
        0 0 24px var(--green-glow);
    transform: translateY(-2px);
}
.tool-card.available:active {
    transform: translateY(0);
}

.tool-card.locked {
    opacity: 0.38;
    cursor: not-allowed;
}

.tool-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tool-name {
    font-family: "Orbitron", sans-serif;
    font-size: 15px;
    color: var(--green);
    letter-spacing: 2px;
}
.tool-card.locked .tool-name {
    color: var(--text-dim);
}

/* pulsing online dot for available tools */
.tool-status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 6px var(--green);
    animation: dotPulse 2s ease-in-out infinite;
}
@keyframes dotPulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

.tool-badge {
    font-size: 8px;
    letter-spacing: 2px;
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 2px 6px;
}

.tool-desc {
    font-size: 11px;
    color: var(--text-dim);
    line-height: 1.5;
    flex: 1;
}

.tool-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 4px;
}

.tool-count {
    font-size: 10px;
    color: var(--text-dim);
    opacity: 0.6;
    letter-spacing: 1px;
}

.tool-cta {
    font-size: 10px;
    color: var(--green-dim);
    letter-spacing: 2px;
    transition: color 0.2s;
}
.tool-card.available:hover .tool-cta {
    color: var(--green);
}

/* ── GAME SCREEN ─────────────────────────────────────────────────────────── */

.container {
    width: 100%;
    max-width: 820px;
}

/* ── HEADER ─────────────────────────────────────────────────────────────── */

header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 18px;
    gap: 12px;
    flex-wrap: wrap;
}

.header-left {
    display: flex;
    align-items: baseline;
    gap: 16px;
    min-width: 0; /* allow children to shrink */
}

.back-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: "Share Tech Mono", monospace;
    font-size: 10px;
    letter-spacing: 2px;
    padding: 4px 10px;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s;
    white-space: nowrap;
    touch-action: manipulation;
}
.back-btn:hover {
    border-color: var(--green-dim);
    color: var(--green);
}

.logo {
    font-family: "Orbitron", sans-serif;
    font-size: clamp(13px, 3.5vw, 18px);
    color: var(--green);
    text-shadow: 0 0 20px var(--green);
    letter-spacing: clamp(2px, 1vw, 4px);
    white-space: nowrap;
    min-width: 0;
}
.logo span {
    color: var(--text-dim);
}

.logo-tool {
    font-size: 13px;
    color: var(--text-dim);
    letter-spacing: 3px;
    margin-left: 4px;
}
.logo-tool::before {
    content: "/ ";
}

.stats {
    display: flex;
    gap: 24px;
    flex-shrink: 0;
}
.stat {
    text-align: right;
}
.stat-label {
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 2px;
    text-transform: uppercase;
}
.stat-value {
    font-family: "Orbitron", sans-serif;
    font-size: clamp(14px, 3.5vw, 18px);
    color: var(--green);
}

/* ── DESCRIPTION BOX ────────────────────────────────────────────────────── */

.desc-box {
    background: rgba(65, 224, 255, 0.04);
    border: 1px solid #1a3a4a;
    border-radius: 4px;
    padding: 10px 18px;
    margin-bottom: 12px;
    font-size: 12px;
    color: #7ab8cc;
    letter-spacing: 0.4px;
    line-height: 1.6;
    min-height: 38px;
    position: relative;
}
.desc-box::before {
    content: "› WHAT IT DOES";
    position: absolute;
    top: -8px;
    left: 12px;
    font-size: 9px;
    color: #3a7a8a;
    letter-spacing: 3px;
    background: var(--bg);
    padding: 0 6px;
}
.desc-box strong {
    color: var(--cyan);
    font-weight: normal;
}

/* ── TARGET COMMAND BOX ─────────────────────────────────────────────────── */

.command-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 22px 28px 18px;
    margin-bottom: 12px;
    position: relative;
    overflow: hidden;
}
.command-box::before {
    content: "› TARGET COMMAND";
    position: absolute;
    top: 8px;
    left: 14px;
    font-size: 9px;
    color: var(--text-dim);
    letter-spacing: 3px;
}
.command-box::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--green), transparent);
    animation: scan 3s ease-in-out infinite;
}

@keyframes scan {
    0%,
    100% {
        opacity: 0;
        transform: translateX(-100%);
    }
    50% {
        opacity: 1;
        transform: translateX(0);
    }
}

.command-display {
    margin-top: 10px;
    font-size: clamp(14px, 3.5vw, 20px);
    letter-spacing: clamp(0px, 0.3vw, 1px);
    line-height: 1.6;
    color: var(--text-dim);
    word-break: break-all;
}

.char.correct {
    color: var(--green);
}
.char.wrong {
    color: var(--red);
    background: rgba(255, 58, 58, 0.15);
    border-radius: 2px;
}
.char.current {
    color: var(--bg);
    background: var(--green);
    border-radius: 2px;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%,
    100% {
        background: var(--green);
    }
    50% {
        background: var(--green-dim);
    }
}

/* ── INPUT ──────────────────────────────────────────────────────────────── */

.input-area {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    display: flex;
    align-items: center;
    padding: 0 20px;
    transition:
        border-color 0.2s,
        box-shadow 0.2s;
    margin-bottom: 12px;
}
.input-area.done {
    border-color: var(--green);
    box-shadow:
        0 0 0 1px var(--green),
        inset 0 0 20px var(--green-glow);
    cursor: pointer;
    touch-action: manipulation;
}
.input-area:not(.done):focus-within {
    border-color: var(--green-dim);
    box-shadow:
        0 0 0 1px var(--green-dim),
        inset 0 0 20px var(--green-glow);
}

.prompt-sym {
    color: var(--green);
    font-size: clamp(15px, 3.5vw, 18px);
    margin-right: 12px;
    user-select: none;
    flex-shrink: 0;
}

input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--green);
    font-family: "Share Tech Mono", monospace;
    /* 16px minimum prevents iOS Safari from zooming on focus */
    font-size: max(16px, clamp(15px, 3.5vw, 18px));
    padding: 14px 0;
    caret-color: transparent;
    letter-spacing: 1px;
    min-width: 0;
}
input::placeholder {
    color: var(--text-dim);
    opacity: 0.4;
}

/* ── PROGRESS ───────────────────────────────────────────────────────────── */

.progress-bar {
    height: 2px;
    background: var(--border);
    border-radius: 2px;
    margin-bottom: 12px;
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: var(--green);
    border-radius: 2px;
    transition: width 0.1s;
    box-shadow: 0 0 8px var(--green);
}

/* ── SIMULATED OUTPUT ───────────────────────────────────────────────────── */

.output-box {
    background: #060d06;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 14px 18px;
    font-size: 12px;
    line-height: 1.75;
    color: var(--text-dim);
    min-height: 100px;
    max-height: 200px;
    overflow-y: auto;
    position: relative;
    margin-bottom: 12px;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}
.output-box::before {
    content: "› SIMULATED OUTPUT";
    position: absolute;
    top: 8px;
    right: 14px;
    font-size: 9px;
    color: var(--text-dim);
    letter-spacing: 3px;
}

.out-waiting {
    color: var(--text-dim);
    opacity: 0.35;
    font-style: italic;
}
.out-line {
    display: block;
}
.out-open {
    color: var(--green);
}
.out-closed {
    color: var(--red);
}
.out-filter {
    color: var(--yellow);
}
.out-header {
    color: var(--cyan);
}
.out-info {
    color: #aaffaa;
}
.out-bold {
    color: var(--text);
}
.out-dim {
    color: var(--text-dim);
}

/* ── BOTTOM BAR ─────────────────────────────────────────────────────────── */

.bottom-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 1px;
    gap: 8px;
    flex-wrap: wrap;
}

.hint {
    opacity: 0.55;
}
.hint .enter-hint {
    color: var(--green);
    opacity: 1;
    display: none;
    cursor: pointer;
    touch-action: manipulation;
    text-decoration: underline;
    text-decoration-color: var(--green-dim);
    text-underline-offset: 3px;
}
.hint .enter-hint.visible {
    display: inline;
    animation: pulse 1.2s ease-in-out infinite;
}

@keyframes pulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.4;
    }
}

.skip-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: "Share Tech Mono", monospace;
    font-size: 11px;
    letter-spacing: 2px;
    padding: 5px 14px;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s;
    touch-action: manipulation;
}
.skip-btn:hover {
    border-color: var(--green-dim);
    color: var(--green);
}

/* ── FLASH OVERLAY ──────────────────────────────────────────────────────── */

.flash {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 100;
    opacity: 0;
}
.flash.success {
    background: rgba(0, 255, 65, 0.08);
    animation: flashAnim 0.4s ease-out;
}
.flash.error {
    background: rgba(255, 58, 58, 0.06);
    animation: flashAnim 0.15s ease-out;
}

@keyframes flashAnim {
    0% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}

/* ── SITE FOOTER ─────────────────────────────────────────────────────────── */

.site-footer {
    position: fixed;
    bottom: 20px;
    left: 0;
    right: 0;
    text-align: center;
    font-family: "Share Tech Mono", monospace;
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 1.5px;
    opacity: 0.5;
    pointer-events: none;
    z-index: 10;
}

.site-footer a {
    color: var(--green-dim);
    text-decoration: none;
    transition: color 0.2s;
    pointer-events: all;
}

.site-footer a:visited {
    color: var(--green-dim);
    text-decoration: none;
}

.site-footer a:hover {
    color: var(--green);
}

/* ── RESPONSIVE ─────────────────────────────────────────────────────────── */

/* ── md: tablet / large phone ── */
@media (max-width: 680px) {
    body {
        padding: 16px;
    }

    .select-header {
        margin-bottom: 32px;
    }

    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .tool-card-inner {
        padding: 14px 16px 12px;
    }

    .command-box {
        padding: 22px 18px 14px;
    }

    .input-area {
        padding: 0 16px;
    }

    .output-box {
        max-height: 160px;
    }
}

/* ── sm: phone ── */
@media (max-width: 480px) {
    body {
        padding: 12px;
    }

    /* --- selection screen --- */
    .select-header {
        margin-bottom: 20px;
    }

    .select-prompt {
        font-size: 10px;
        letter-spacing: 1.5px;
        margin-bottom: 14px;
    }

    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .tool-card-inner {
        padding: 12px 12px 10px;
        gap: 6px;
    }

    .tool-name {
        font-size: 12px;
        letter-spacing: 1px;
    }

    .tool-desc {
        font-size: 10px;
    }

    .tool-count {
        font-size: 9px;
    }

    .tool-cta {
        font-size: 9px;
        letter-spacing: 1px;
    }

    .tool-badge {
        font-size: 7px;
        padding: 1px 4px;
    }

    /* --- game header: back-btn + logo on row 1, stats on row 2 --- */
    header {
        row-gap: 8px;
        margin-bottom: 12px;
        align-items: center;
    }

    .header-left {
        flex: 1 1 100%; /* own row */
        justify-content: space-between;
        align-items: center;
    }

    .stats {
        flex: 1 1 100%; /* own row */
        justify-content: flex-end;
        gap: 16px;
    }

    /* hide "/ nmap" label — implied by context on mobile */
    .logo-tool {
        display: none;
    }

    /* --- command box --- */
    .command-box {
        padding: 22px 12px 12px;
    }

    /* --- input area --- */
    .input-area {
        padding: 0 12px;
    }

    /* --- output --- */
    .output-box {
        min-height: 80px;
        max-height: 130px;
        padding: 12px 12px;
        font-size: 11px;
    }

    /* hide the long TAB hint text, keep only the animated enter hint */
    .hint-tab-hint {
        display: none;
    }

    .bottom-bar {
        flex-wrap: nowrap;
    }

    .hint {
        font-size: 10px;
        letter-spacing: 0;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
}

/* ── xs: very small phone (< 360px) ── */
@media (max-width: 360px) {
    body {
        padding: 8px;
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .command-box {
        padding: 20px 10px 10px;
    }

    .input-area {
        padding: 0 10px;
    }

    .prompt-sym {
        margin-right: 8px;
    }

    .stat-label {
        font-size: 9px;
        letter-spacing: 1px;
    }

    .back-btn {
        font-size: 9px;
        padding: 3px 8px;
    }

    .skip-btn {
        font-size: 10px;
        padding: 5px 10px;
        letter-spacing: 1px;
    }

    .output-box {
        max-height: 110px;
    }
}