/* ═══ Kahvipeli — Shared Styles ═══ */

:root {
    /* Colors */
    --color-primary: #27ae60;
    --color-primary-hover: #219a52;
    --color-primary-light: #2ecc71;
    --color-secondary: #3498db;
    --color-secondary-hover: #2980b9;
    --color-danger: #e74c3c;
    --color-danger-hover: #c0392b;
    --color-dark: #2c3e50;
    --color-muted: #7f8c8d;
    --color-light-gray: #95a5a6;
    --color-border: #ddd;
    --color-border-light: #eee;
    --color-bg: #f0f0f0;
    --color-white: white;
    --color-selected-bg: #f0faf4;

    /* Difficulty badges (solid = game default, overridden in index.html) */
    --badge-a1-bg: #27ae60;  --badge-a1-color: white;
    --badge-a2-bg: #2ecc71;  --badge-a2-color: white;
    --badge-b1-bg: #f39c12;  --badge-b1-color: white;
    --badge-b2-bg: #e74c3c;  --badge-b2-color: white;

    /* Typography */
    --font-family: 'Segoe UI', Arial, sans-serif;

    /* Radii */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;

    /* Transitions */
    --transition: all 0.15s;
}

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

/* ── Base ── */
body {
    font-family: var(--font-family);
    background: var(--color-bg);
    -webkit-text-size-adjust: 100%;
}

.hidden { display: none !important; }

/* ── Header ── */
.header {
    text-align: center;
    padding: 16px 20px;
    background: var(--color-dark);
    color: white;
}

.header h1 { font-size: 1.3em; }
.header p { opacity: 0.8; font-size: 0.85em; margin-top: 4px; }

/* ── Buttons (base) ── */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.05em;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Inputs (base) ── */
.input-group { margin-bottom: 16px; }

.input-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-dark);
}

.input-group input {
    width: 100%;
    padding: 14px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: 1.1em;
    outline: none;
    transition: border-color 0.15s;
}

.input-group input:focus { border-color: var(--color-secondary); }

/* ── Pack List & Items ── */
.pack-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.pack-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-white);
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
}

.pack-item:hover { border-color: #bdc3c7; }

.pack-item.selected,
.pack-item.checked {
    border-color: var(--color-primary);
    background: var(--color-selected-bg);
}

.pack-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
}

.pack-icon { font-size: 1.5em; }
.pack-info { flex: 1; }
.pack-name { font-weight: 600; color: var(--color-dark); }
.pack-desc { font-size: 0.8em; color: var(--color-muted); margin-top: 2px; }
.pack-meta { text-align: right; font-size: 0.75em; }
.pack-count { color: var(--color-light-gray); margin-top: 4px; }

/* ── Difficulty Badges ── */
.difficulty-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.85em;
}

.diff-A1, .badge-A1 { background: var(--badge-a1-bg); color: var(--badge-a1-color); }
.diff-A2, .badge-A2 { background: var(--badge-a2-bg); color: var(--badge-a2-color); }
.diff-B1, .badge-B1 { background: var(--badge-b1-bg); color: var(--badge-b1-color); }
.diff-B2, .badge-B2 { background: var(--badge-b2-bg); color: var(--badge-b2-color); }

/* ── Toast Notifications ── */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-danger);
    color: white;
    padding: 12px 24px;
    border-radius: var(--radius-lg);
    font-weight: 600;
    z-index: 100;
    animation: toast-in 0.3s;
}

@keyframes toast-in {
    from { opacity: 0; transform: translateX(-50%) translateY(20px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}