@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&display=swap');

/* =====================================================
   RESET & VARIABLES
===================================================== */

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

:root {
    --green: #3cff72;
    --green-dark: #0c5223;
    --metal: #c8cfcb;
    --black: #030504;
    --danger: #ff3030;

    --green-glow: 0 0 10px var(--green);
    --green-glow-strong: 0 0 10px var(--green), 0 0 25px rgba(60, 255, 114, 0.5);
    --panel-width: 185px;
    --hud-inset: 35px;
    --side-offset: 55px;
    --glow-intensity: 1;
}

/* =====================================================
   BASE
===================================================== */

body {
    min-height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    background:
        radial-gradient(
            circle at 50% 45%,
            #102418 0%,
            #07100a 35%,
            #030504 72%,
            #010201 100%
        );
    color: white;
    font-family: 'Orbitron', 'Arial Black', sans-serif;
    transition: background 1s ease;
}

body.threat-elevated {
    --glow-intensity: 1.3;
}
body.threat-high {
    --glow-intensity: 1.6;
}
body.threat-critical {
    --glow-intensity: 2;
}

/* CRITICAL MODE */
body.critical {
    --green: #ff3030;
    --green-dark: #651010;
    background:
        radial-gradient(
            circle at 50% 45%,
            #301010 0%,
            #130606 35%,
            #050202 72%,
            #010101 100%
        );
}
body.critical .status-dot {
    animation: pulse 0.45s infinite;
}
body.critical .time-box {
    animation: criticalPulse 1.2s infinite;
}
body.critical .hud {
    border-color: rgba(255, 48, 48, 0.2);
}
body.critical .title {
    animation: mildGlitch 8s infinite;
}

@keyframes criticalPulse {
    0%, 100% {
        box-shadow:
            inset 0 0 30px rgba(255, 48, 48, 0.02),
            0 15px 45px rgba(0, 0, 0, 0.5);
    }
    50% {
        box-shadow:
            inset 0 0 30px rgba(255, 48, 48, 0.12),
            0 0 30px rgba(255, 48, 48, 0.12);
    }
}

@keyframes mildGlitch {
    0%, 92%, 100% {
        transform: translate(0);
        text-shadow:
            0 1px 0 #fff,
            0 2px 0 #7b817e,
            0 4px 0 #353a38,
            0 0 18px rgba(255, 48, 48, 0.3);
    }
    93% {
        transform: translate(-2px, 1px);
        text-shadow: -2px 0 #ff3030, 2px 0 #3cff72;
    }
    94% {
        transform: translate(2px, -1px);
        text-shadow: 2px 0 #ff3030, -2px 0 #3cff72;
    }
    95% {
        transform: translate(0);
    }
}

/* ARRIVAL MODE */
body.arrived {
    --green: #3cff72;
    background:
        radial-gradient(
            circle,
            #173b22 0%,
            #07150b 35%,
            #020402 75%
        );
}
body.arrived .content {
    animation: arrivalReveal 1.2s forwards;
}
body.arrived .side-panel,
body.arrived .system,
body.arrived .divider,
body.arrived .subtitle,
body.arrived .status,
body.arrived .mobile-threat,
body.arrived .controls {
    opacity: 0;
    pointer-events: none;
}
body.arrived .title {
    font-size: clamp(42px, 8vw, 100px);
    color: var(--green);
    text-shadow:
        0 0 10px var(--green),
        0 0 30px var(--green),
        0 0 80px rgba(60, 255, 114, 0.5);
    animation: none;
}
body.arrived .arrival-message {
    display: block;
}

@keyframes arrivalReveal {
    0% {
        opacity: 0;
        transform: scale(1.5);
        filter: blur(15px);
    }
    60% {
        opacity: 1;
        transform: scale(0.98);
        filter: blur(0);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* BOOT SCREEN */
.boot-screen {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #010201;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}
.boot-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.boot-content {
    width: min(520px, 82vw);
    color: #68736c;
    font-size: 10px;
    letter-spacing: 3px;
    text-transform: uppercase;
}
.boot-header {
    margin-bottom: 28px;
    color: var(--green);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 5px;
    text-shadow: var(--green-glow);
    opacity: 0;
    animation: bootFade 0.5s 0.2s forwards;
}
.boot-line {
    display: flex;
    justify-content: space-between;
    padding: 9px 0;
    border-bottom: 1px solid rgba(60, 255, 114, 0.06);
    opacity: 0;
}
.boot-line span:last-child {
    color: var(--green);
    font-weight: 700;
    text-shadow: 0 0 8px var(--green);
}
.boot-line:nth-child(2) { animation: bootFade 0.4s 0.7s forwards; }
.boot-line:nth-child(3) { animation: bootFade 0.4s 1.05s forwards; }
.boot-line:nth-child(4) { animation: bootFade 0.4s 1.4s forwards; }
.boot-line:nth-child(5) { animation: bootFade 0.4s 1.75s forwards; }
.boot-line:nth-child(6) { animation: bootFade 0.4s 2.1s forwards; }
.boot-status {
    margin-top: 28px;
    text-align: center;
    color: var(--green);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 6px;
    text-shadow: var(--green-glow-strong);
    opacity: 0;
    animation: protocolReveal 0.8s 2.55s forwards;
}
.boot-substatus {
    margin-top: 12px;
    text-align: center;
    color: #4b574f;
    font-size: 8px;
    letter-spacing: 4px;
    opacity: 0;
    animation: bootFade 0.5s 3.1s forwards;
}
.boot-corner {
    position: absolute;
    width: 30px;
    height: 30px;
    border-color: rgba(60, 255, 114, 0.5);
    border-style: solid;
}
.boot-corner.top-left { top: 30px; left: 30px; border-width: 1px 0 0 1px; }
.boot-corner.top-right { top: 30px; right: 30px; border-width: 1px 1px 0 0; }
.boot-corner.bottom-left { bottom: 30px; left: 30px; border-width: 0 0 1px 1px; }
.boot-corner.bottom-right { bottom: 30px; right: 30px; border-width: 0 1px 1px 0; }

@keyframes bootFade {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes protocolReveal {
    0% { opacity: 0; transform: scale(0.92); filter: blur(8px); }
    60% { opacity: 1; transform: scale(1.03); filter: blur(0); }
    100% { opacity: 1; transform: scale(1); }
}

/* ATMOSPHERE & EMBLEM */
.atmosphere {
    position: fixed;
    width: 750px;
    height: 750px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(60, 255, 114, calc(0.09 * var(--glow-intensity))), transparent 65%);
    filter: blur(60px);
    transition: background 1s ease;
}
.emblem {
    position: absolute;
    width: 470px;
    height: 570px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.08;
    border: 2px solid var(--green);
    clip-path: polygon(
        50% 0%,
        86% 12%,
        100% 42%,
        91% 75%,
        67% 94%,
        50% 100%,
        33% 94%,
        9% 75%,
        0% 42%,
        14% 12%
    );
    transition: border-color 1s ease, opacity 0.8s ease;
}
body.threat-high .emblem,
body.threat-critical .emblem {
    opacity: 0.12;
}

/* MAIN HUD */
.hud {
    position: fixed;
    inset: var(--hud-inset);
    border: 1px solid rgba(60, 255, 114, 0.07);
    pointer-events: none;
    transition: border-color 0.5s ease;
}
.hud::before,
.hud::after {
    content: "";
    position: absolute;
    width: 70px;
    height: 2px;
    background: var(--green);
    box-shadow: var(--green-glow);
}
.hud::before { top: -1px; left: -1px; }
.hud::after { bottom: -1px; right: -1px; }

/* SIDE PANELS */
.side-panel {
    position: fixed;
    top: 50%;
    width: var(--panel-width);
    transform: translateY(-50%);
    z-index: 4;
    opacity: 0;
    animation: sideReveal 1s 4s forwards;
}
.side-panel.left { left: var(--side-offset); }
.side-panel.right { right: var(--side-offset); animation-name: sideRevealRight; }

@keyframes sideReveal {
    from { opacity: 0; transform: translateY(-50%) translateX(15px); }
    to { opacity: 1; transform: translateY(-50%) translateX(0); }
}
@keyframes sideRevealRight {
    from { opacity: 0; transform: translateY(-50%) translateX(-15px); }
    to { opacity: 1; transform: translateY(-50%) translateX(0); }
}

.panel-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(60, 255, 114, 0.15);
    color: #536057;
    font-size: 7px;
    font-weight: 700;
    letter-spacing: 3px;
}
.panel-header span:last-child {
    color: var(--green);
    text-shadow: 0 0 7px var(--green);
}
.metric { margin-bottom: 15px; }
.metric-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    color: #56615a;
    font-size: 7px;
    letter-spacing: 2px;
}
.metric-bar {
    width: 100%;
    height: 4px;
    overflow: hidden;
    background: rgba(60, 255, 114, 0.06);
}
.metric-fill {
    height: 100%;
    background: var(--green);
    box-shadow: 0 0 8px var(--green);
}
.power { width: 98%; }
.armor { width: 94%; }
.defense { width: 100%; }
.energy { width: 87%; }
.panel-footer {
    margin-top: 22px;
    color: #364139;
    font-size: 6px;
    line-height: 2;
    letter-spacing: 2px;
}
.panel-footer strong { color: #56655b; }

/* CONTENT */
.content {
    position: relative;
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    opacity: 0;
    transform: scale(0.97);
    animation: mainReveal 1s 3.45s forwards;
}
@keyframes mainReveal {
    to { opacity: 1; transform: scale(1); }
}
.status {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: #68736c;
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 5px;
    text-transform: uppercase;
}
.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: var(--green-glow);
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* TITLE */
.title {
    font-size: clamp(38px, 7vw, 82px);
    font-weight: 900;
    letter-spacing: 8px;
    color: var(--metal);
    text-transform: uppercase;
    text-shadow:
        0 1px 0 #fff,
        0 2px 0 #7b817e,
        0 4px 0 #353a38,
        0 0 18px rgba(60, 255, 114, 0.22);
    transition: color 0.8s ease, text-shadow 0.8s ease;
}
.title span {
    color: var(--green);
    text-shadow:
        0 0 8px var(--green),
        0 0 calc(25px * var(--glow-intensity)) rgba(60, 255, 114, 0.4);
}
.subtitle {
    margin-top: 15px;
    color: #707a74;
    font-size: 10px;
    letter-spacing: 6px;
}

/* DIVIDER */
.divider {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 430px;
    max-width: 80vw;
    margin-top: 28px;
}
.divider span {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(60, 255, 114, 0.4));
}
.divider span:last-child {
    background: linear-gradient(90deg, rgba(60, 255, 114, 0.4), transparent);
}
.divider i {
    width: 7px;
    height: 7px;
    border: 1px solid var(--green);
    transform: rotate(45deg);
    box-shadow: var(--green-glow);
}

/* COUNTDOWN + NUMBER ANIMATION */
.timer {
    display: flex;
    gap: 18px;
    margin-top: 30px;
}
.time-box {
    position: relative;
    min-width: 125px;
    padding: 22px 15px 17px;
    background:
        linear-gradient(
            145deg,
            rgba(100, 110, 105, 0.12),
            rgba(3, 5, 4, 0.92)
        );
    border: 1px solid rgba(150, 160, 155, 0.22);
    clip-path: polygon(
        9px 0,
        calc(100% - 9px) 0,
        100% 9px,
        100% calc(100% - 9px),
        calc(100% - 9px) 100%,
        9px 100%,
        0 calc(100% - 9px),
        0 9px
    );
    box-shadow:
        inset 0 0 30px rgba(255, 255, 255, 0.025),
        0 15px 45px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}
.time-box::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 38px;
    height: 2px;
    background: var(--green);
    box-shadow: 0 0 9px var(--green);
}
.time-box::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 0;
    width: 38px;
    height: 2px;
    background: var(--green-dark);
}
.number {
    color: #dce1de;
    font-size: 65px;
    font-weight: 800;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    text-shadow:
        0 1px 0 #fff,
        0 0 12px rgba(60, 255, 114, 0.25);
    transition: opacity 0.18s ease, transform 0.18s ease;
}
.number.tick {
    opacity: 0.35;
    transform: translateY(-6px);
}
.label {
    margin-top: 13px;
    color: #67716b;
    font-size: 9px;
    letter-spacing: 4px;
}

/* THREAT LEVEL */
.threat {
    position: fixed;
    bottom: 45px;
    left: var(--side-offset);
    z-index: 6;
    width: var(--panel-width);
    opacity: 0;
    animation: sideReveal 1s 4.2s forwards;
}
.threat-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    color: #4e5952;
    font-size: 7px;
    letter-spacing: 3px;
}
.threat-level {
    color: var(--green);
    font-weight: 800;
    text-shadow: 0 0 8px var(--green);
}
.threat-track {
    width: 100%;
    height: 5px;
    background:
        repeating-linear-gradient(
            90deg,
            rgba(60, 255, 114, 0.12) 0,
            rgba(60, 255, 114, 0.12) 7px,
            transparent 7px,
            transparent 10px
        );
}
.threat-fill {
    width: 10%;
    height: 100%;
    background: var(--green);
    box-shadow: 0 0 8px var(--green);
    transition: width 0.6s ease, background 0.6s ease;
}

.mobile-threat {
    display: none;
    position: fixed;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 6;
    width: min(280px, 80vw);
    text-align: center;
    opacity: 0;
    animation: mainReveal 1s 4.2s forwards;
}
.mobile-threat .threat-header {
    justify-content: center;
    gap: 12px;
    margin-bottom: 6px;
}

/* SYSTEM MESSAGE */
.system-message {
    position: fixed;
    right: var(--side-offset);
    bottom: 45px;
    z-index: 6;
    width: 260px;
    color: #4e5952;
    font-size: 7px;
    letter-spacing: 2px;
    text-align: right;
    text-transform: uppercase;
}
.system-message::before {
    content: "> ";
    color: var(--green);
}
.message-text { color: #657169; }
.cursor {
    display: inline-block;
    width: 5px;
    height: 9px;
    margin-left: 4px;
    background: var(--green);
    animation: cursorBlink 0.7s infinite;
}
@keyframes cursorBlink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* ARRIVAL MESSAGE */
.arrival-message {
    display: none;
    margin-top: 35px;
    color: var(--green);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 6px;
    text-shadow:
        0 0 10px var(--green),
        0 0 30px var(--green);
    animation: arrivalPulse 1.5s infinite;
}
@keyframes arrivalPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* SYSTEM */
.system {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 25px;
    color: #414b45;
    font-size: 8px;
    letter-spacing: 3px;
}
.system strong { color: #617069; }

/* CONTROLS */
.controls {
    position: fixed;
    top: 22px;
    right: 22px;
    z-index: 20;
    display: flex;
    gap: 12px;
    opacity: 0;
    animation: mainReveal 0.8s 4.5s forwards;
}
.ctrl-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(3, 5, 4, 0.85);
    border: 1px solid rgba(60, 255, 114, 0.45);
    color: var(--green);
    font-size: 16px;
    font-family: inherit;
    cursor: pointer;
    transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
    box-shadow: 0 0 12px rgba(60, 255, 114, 0.15);
    clip-path: polygon(
        5px 0,
        calc(100% - 5px) 0,
        100% 5px,
        100% calc(100% - 5px),
        calc(100% - 5px) 100%,
        5px 100%,
        0 calc(100% - 5px),
        0 5px
    );
}
.ctrl-btn:hover {
    color: #fff;
    border-color: var(--green);
    background: rgba(60, 255, 114, 0.15);
    box-shadow: 0 0 18px rgba(60, 255, 114, 0.35);
}
.ctrl-btn.active {
    color: var(--green);
    border-color: var(--green);
    background: rgba(60, 255, 114, 0.12);
    text-shadow: 0 0 10px var(--green);
    box-shadow: 0 0 16px rgba(60, 255, 114, 0.4);
}

/* SCANLINES */
.scanlines {
    position: fixed;
    inset: 0;
    z-index: 15;
    pointer-events: none;
    background:
        repeating-linear-gradient(
            to bottom,
            transparent 0,
            transparent 4px,
            rgba(60, 255, 114, 0.015) 5px
        );
}

/* REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .number.tick {
        opacity: 1;
        transform: none;
    }
    body.critical .title {
        animation: none;
    }
}

/* RESPONSIVE */
@media (max-width: 1100px) {
    .side-panel,
    .threat,
    .system-message {
        display: none;
    }
    .mobile-threat {
        display: block;
    }
}
@media (max-width: 700px) {
    .hud { inset: 15px; }
    .emblem { width: 300px; height: 390px; }
    .title { font-size: 42px; letter-spacing: 4px; }
    .subtitle { font-size: 8px; letter-spacing: 3px; }
    .timer { gap: 6px; }
    .time-box { min-width: 74px; padding: 14px 5px 12px; }
    .number { font-size: 37px; }
    .label { font-size: 7px; letter-spacing: 2px; }
    .arrival-message { font-size: 8px; letter-spacing: 3px; }
    .controls { top: 14px; right: 14px; }
    .ctrl-btn { width: 36px; height: 36px; font-size: 14px; }
}
@media (max-width: 400px) {
    .title { font-size: 36px; }
    .timer { gap: 4px; }
    .time-box { min-width: 68px; }
    .number { font-size: 31px; }
}