/* ═══════════════════════════════════════════════════════════════
   Kamii — Global Stylesheet (shared across all pages)
   Design language: sakura-night
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,300&family=DM+Mono:wght@400;500&display=swap');

/* ── Design tokens ────────────────────────────────────────────── */
:root {
    /* Raw channels — used to build rgba() tints without hardcoding hex elsewhere */
    --white-rgb:  255, 255, 255;
    --black-rgb:  0, 0, 0;
    --accent-rgb:  255, 119, 176;
    --accent2-rgb: 232, 79, 151;
    --accent3-rgb: 185, 140, 255;

    /* Backgrounds — plum-black elevation scale */
    --bg-rgb:    18, 10, 22;
    --bg:        #120a16;
    --surface:   #1c1220;
    --surface2:  #241629;
    --surface3:  #2e1a34;

    /* Borders */
    --border:  rgba(var(--white-rgb), 0.08);
    --border2: rgba(var(--white-rgb), 0.14);

    /* Text */
    --text:  #f6eef8;
    --text2: #b3a3bd;
    --text3: #7d7086;

    /* Accents — the sakura-night trio */
    --accent:  #ff77b0; /* sakura pink — primary */
    --accent2: #e84f97; /* magenta — secondary / hover */
    --accent3: #b98cff; /* lavender — tertiary */

    /* Status */
    --success:        #8fe3b0;
    --success-bg:      rgba(143, 227, 176, 0.14);
    --success-border:  rgba(143, 227, 176, 0.35);
    --danger:          #ff6b95;
    --danger-bg:       rgba(255, 107, 149, 0.12);
    --danger-border:   rgba(255, 107, 149, 0.35);
    --warning:         #ffd88a;
    --warning-bg:      rgba(255, 216, 138, 0.08);
    --warning-border:  rgba(255, 216, 138, 0.2);

    /* Radii */
    --radius-sm: 9px;
    --radius:    14px;
    --radius-lg: 22px;

    /* Spacing scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;

    /* Shadow / glow — accents as soft light sources, not stickers */
    --shadow-sm: 0 2px 10px rgba(var(--black-rgb), 0.35);
    --shadow-md: 0 10px 30px rgba(var(--black-rgb), 0.45);
    --shadow-lg: 0 20px 56px rgba(var(--black-rgb), 0.55);
    --glow-sm:       0 0 14px rgba(var(--accent-rgb), 0.18);
    --glow-md:       0 0 28px rgba(var(--accent-rgb), 0.24);
    --glow-lg:       0 0 52px rgba(var(--accent-rgb), 0.28);
    --glow-lavender: 0 0 24px rgba(var(--accent3-rgb), 0.22);
    --focus-ring: 0 0 0 3px rgba(var(--accent-rgb), 0.28);

    /* Motion */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --dur-fast: 150ms;
    --dur:      200ms;
    --dur-slow: 250ms;

    --mono: 'DM Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    width: 100%;
}

/* ── Focus states (keyboard accessible everywhere) ──────────────── */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ── Reduced motion ──────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ── Header ───────────────────────────────────────────────────── */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 48px;
    height: 64px;
    background: rgba(var(--bg-rgb), 0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.logo img {
    width: 32px;
    height: 32px;
}

.logotext {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(120deg, white 30%, var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

nav a {
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text2);
    font-size: 14px;
    font-weight: 500;
    transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}

nav a:hover {
    color: var(--text);
    background: rgba(var(--white-rgb), 0.05);
}

.btn {
    padding: 7px 18px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: white !important;
    font-size: 14px;
    font-weight: 600;
    transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}

.btn:hover {
    opacity: 0.92;
    transform: translateY(-1px);
    box-shadow: var(--glow-sm);
}

/* ── Coin badge (header, shared: dashboard + panel) ─────────────── */
.coin-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 14px 5px 8px;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(var(--accent3-rgb), 0.18), rgba(var(--accent-rgb), 0.1));
    border: 1px solid rgba(var(--accent3-rgb), 0.32);
    color: var(--text);
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.coin-badge:hover {
    color: var(--text);
    border-color: rgba(var(--accent3-rgb), 0.55);
    box-shadow: var(--glow-lavender);
    transform: translateY(-1px);
}

.coin-badge-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    filter: drop-shadow(0 0 5px rgba(var(--accent-rgb), 0.4));
}

/* ── Hero (shared: index + panel) ─────────────────────────────── */
.hero {
    padding: 120px 20px 100px;
    text-align: center;
    background:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(var(--accent-rgb), 0.14) 0%, transparent 70%),
        var(--bg);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.015'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 2px solid var(--border2);
    margin-bottom: 24px;
    box-shadow: var(--glow-lg);
}

.hero h1 {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--text);
    margin-bottom: 16px;
}

.hero p {
    font-size: 17px;
    color: var(--text2);
    max-width: 480px;
    margin: 0 auto 36px;
    font-weight: 300;
}

/* ── Warning banner ───────────────────────────────────────────── */
.warning {
    font-family: var(--mono);
    font-size: 12px;
    background: var(--warning-bg);
    border: 1px solid var(--warning-border);
    color: var(--warning);
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin: 20px auto;
    max-width: 600px;
    text-align: left;
}

/* ── Footer ───────────────────────────────────────────────────── */
footer {
    text-align: center;
    padding: 28px 20px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    color: var(--text3);
    font-size: 13px;
}

footer a {
    color: var(--accent2);
    text-decoration: none;
    font-weight: 500;
    padding: 0 12px;
    transition: color var(--dur-fast) var(--ease-out);
}

footer a:hover { color: var(--text); }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 800px) {
    header { padding: 0 20px; }
}

@media (max-width: 680px) {
    header {
        flex-wrap: wrap;
        justify-content: center;
        height: auto;
        padding: 12px 16px;
        row-gap: 10px;
    }

    nav {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 2px;
    }

    nav a { padding: 6px 10px; font-size: 13px; }
    .coin-badge { padding: 5px 12px 5px 6px; font-size: 12.5px; }
}

@media (max-width: 380px) {
    header { padding: 10px 14px; }
    .logotext { font-size: 16px; }
    nav a { padding: 5px 8px; font-size: 12.5px; }
    .btn { padding: 6px 14px; }
    .coin-badge { padding: 4px 10px 4px 5px; font-size: 12px; }
    .coin-badge-icon { width: 17px; height: 17px; }
}