/* ============================================================
   css/auth.css  —  Login & Register page
   LED / HUD aesthetic: dark bg, cyan electric glow
============================================================ */

:root {
    --clr-bg: #000d1a;
    --clr-panel: rgba(0, 20, 40, 0.85);
    --clr-border: #00c8ff;
    --clr-glow: #00f0ff;
    --clr-text: #c0f0ff;
    --clr-dim: #406070;
    --clr-accent: #0080ff;
    --clr-warn: #ff4444;
    --font-hud: 'Orbitron', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;
}

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

body {
    background: var(--clr-bg);
    color: var(--clr-text);
    font-family: var(--font-mono);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

#particles-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

/* ── Container ─────────────────────────────────────────────── */
.auth-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    padding: 2.5rem 2rem;
    background: var(--clr-panel);
    border: 1px solid var(--clr-border);
    box-shadow: 0 0 24px rgba(0, 200, 255, 0.15), 0 0 60px rgba(0, 200, 255, 0.07), inset 0 0 30px rgba(0, 100, 200, 0.05);
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}

/* ── Logo ──────────────────────────────────────────────────── */
.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-glyph {
    font-size: 2.5rem;
    color: var(--clr-glow);
    text-shadow: 0 0 20px var(--clr-glow), 0 0 40px var(--clr-accent);
    animation: pulse-glow 2.5s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        text-shadow: 0 0 20px var(--clr-glow), 0 0 40px var(--clr-accent);
    }

    50% {
        text-shadow: 0 0 30px var(--clr-glow), 0 0 60px var(--clr-accent), 0 0 80px var(--clr-glow);
    }
}

.logo-title {
    font-family: var(--font-hud);
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 0.2em;
    color: var(--clr-glow);
    text-shadow: 0 0 12px var(--clr-glow);
    margin-top: 0.5rem;
}

.logo-sub {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--clr-dim);
    margin-top: 0.25rem;
}

/* ── Tabs ──────────────────────────────────────────────────── */
.auth-tabs {
    display: flex;
    gap: 1px;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--clr-border);
}

.auth-tab {
    flex: 1;
    padding: 0.6rem;
    background: transparent;
    border: none;
    color: var(--clr-dim);
    font-family: var(--font-hud);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    cursor: pointer;
    transition: color 0.2s, text-shadow 0.2s;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}

    .auth-tab.active {
        color: var(--clr-glow);
        text-shadow: 0 0 10px var(--clr-glow);
        border-bottom-color: var(--clr-glow);
    }

/* ── Form ──────────────────────────────────────────────────── */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

    .auth-form.hidden {
        display: none;
    }

.field-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.field-label {
    font-family: var(--font-hud);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    color: var(--clr-dim);
}

.hud-input {
    background: rgba(0, 30, 60, 0.8);
    border: 1px solid var(--clr-accent);
    color: var(--clr-text);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    padding: 0.6rem 0.75rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
}

    .hud-input:focus {
        border-color: var(--clr-glow);
        box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
    }

    .hud-input::placeholder {
        color: var(--clr-dim);
    }

/* ── Button ────────────────────────────────────────────────── */
.hud-btn {
    background: transparent;
    border: 1px solid var(--clr-glow);
    color: var(--clr-glow);
    font-family: var(--font-hud);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    padding: 0.75rem 1rem;
    cursor: pointer;
    text-transform: uppercase;
    transition: background 0.2s, box-shadow 0.2s;
    margin-top: 0.25rem;
}

    .hud-btn:hover:not(:disabled) {
        background: rgba(0, 240, 255, 0.1);
        box-shadow: 0 0 16px rgba(0, 240, 255, 0.4);
    }

    .hud-btn:disabled {
        opacity: 0.4;
        cursor: not-allowed;
    }

/* ── Messages ──────────────────────────────────────────────── */
.form-message {
    font-size: 0.8rem;
    min-height: 1.2em;
    transition: color 0.2s;
}

    .form-message.error {
        color: var(--clr-warn);
    }

    .form-message.success {
        color: #00ff80;
        text-shadow: 0 0 6px #00ff80;
    }

/* ── Admin Key toggle (register form) ──────────────────────── */
.admin-key-group {
    margin-top: 0.25rem;
}

.admin-key-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.4rem 0;
    color: var(--clr-dim);
    transition: color 0.2s;
    user-select: none;
}

    .admin-key-toggle:hover {
        color: rgba(255,170,0,0.8);
    }

.admin-key-icon {
    font-size: 0.85rem;
    color: rgba(255,170,0,0.7);
}

.admin-key-label {
    font-family: var(--font-hud);
    font-size: 0.58rem;
    letter-spacing: 0.14em;
    flex: 1;
}

.admin-key-chevron {
    font-size: 0.7rem;
}

.admin-key-reveal {
    padding-top: 0.4rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.admin-key-input {
    border-color: rgba(255,170,0,0.4) !important;
}

    .admin-key-input:focus {
        border-color: rgba(255,170,0,0.9) !important;
        box-shadow: 0 0 8px rgba(255,170,0,0.2) !important;
    }

.admin-key-hint {
    font-size: 0.65rem;
    color: var(--clr-dim);
}