/* ============================================
   Smart Password Generator — Frontend Styles
   ============================================ */

:root {
    --spg-bg:        #0f1117;
    --spg-card:      #1a1d27;
    --spg-border:    #2a2d3e;
    --spg-accent:    #6c63ff;
    --spg-accent2:   #a78bfa;
    --spg-green:     #22d3a5;
    --spg-yellow:    #f59e0b;
    --spg-red:       #f43f5e;
    --spg-text:      #e2e8f0;
    --spg-muted:     #64748b;
    --spg-input-bg:  #12151f;
    --spg-radius:    14px;
    --spg-font:      'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.spg-wrapper {
    max-width: 560px;
    margin: 2rem auto;
    font-family: var(--spg-font);
}

/* Card */
.spg-card {
    background: var(--spg-card);
    border: 1px solid var(--spg-border);
    border-radius: 20px;
    padding: 32px;
    box-shadow: 0 24px 60px rgba(0,0,0,0.45), 0 0 0 1px rgba(108,99,255,0.08);
}

/* Header */
.spg-header {
    text-align: center;
    margin-bottom: 28px;
}
.spg-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--spg-accent), var(--spg-accent2));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    color: #fff;
}
.spg-icon svg { width: 26px; height: 26px; }

.spg-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--spg-text);
    margin: 0 0 6px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}
.spg-subtitle {
    font-size: 0.85rem;
    color: var(--spg-muted);
    margin: 0;
}

/* Controls */
.spg-controls {
    display: flex;
    flex-direction: column;
    gap: 22px;
    margin-bottom: 24px;
}
.spg-control-row {}

.spg-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--spg-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 10px;
}

/* Length badge */
.spg-length-badge {
    background: var(--spg-accent);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 20px;
    min-width: 28px;
    text-align: center;
    transition: transform 0.15s;
}

/* Slider */
.spg-slider-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
}
.spg-slider-min, .spg-slider-max {
    font-size: 0.72rem;
    color: var(--spg-muted);
    min-width: 20px;
    text-align: center;
}
.spg-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 5px;
    border-radius: 99px;
    background: var(--spg-border);
    outline: none;
    cursor: pointer;
    transition: background 0.2s;
}
.spg-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--spg-accent);
    box-shadow: 0 0 0 4px rgba(108,99,255,0.2);
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
}
.spg-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 0 6px rgba(108,99,255,0.3);
}
.spg-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--spg-accent);
    border: none;
    cursor: pointer;
}

/* Toggles */
.spg-toggles {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.spg-toggle-item {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    background: var(--spg-input-bg);
    border: 1px solid var(--spg-border);
    border-radius: 10px;
    padding: 9px 12px;
    transition: border-color 0.2s, background 0.2s;
}
.spg-toggle-item:hover {
    border-color: var(--spg-accent);
}
.spg-toggle-item input[type="checkbox"] { display: none; }

.spg-toggle-track {
    width: 32px;
    height: 18px;
    background: var(--spg-border);
    border-radius: 99px;
    flex-shrink: 0;
    position: relative;
    transition: background 0.25s;
}
.spg-toggle-track::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 12px;
    height: 12px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.25s;
}
.spg-toggle-item input:checked ~ .spg-toggle-track {
    background: var(--spg-accent);
}
.spg-toggle-item input:checked ~ .spg-toggle-track::after {
    transform: translateX(14px);
}
.spg-toggle-item input:checked ~ .spg-toggle-label {
    color: var(--spg-text);
}
.spg-toggle-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--spg-muted);
    transition: color 0.2s;
    user-select: none;
}

/* Count pills */
.spg-count-pills {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.spg-pill {
    background: var(--spg-input-bg);
    border: 1px solid var(--spg-border);
    color: var(--spg-muted);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 7px 18px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--spg-font);
}
.spg-pill:hover {
    border-color: var(--spg-accent);
    color: var(--spg-text);
}
.spg-pill.active {
    background: var(--spg-accent);
    border-color: var(--spg-accent);
    color: #fff;
}

/* Generate Button */
.spg-generate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--spg-accent), #8b5cf6);
    border: none;
    border-radius: var(--spg-radius);
    color: #fff;
    font-family: var(--spg-font);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s;
    box-shadow: 0 8px 24px rgba(108,99,255,0.35);
    margin-bottom: 20px;
}
.spg-generate-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 32px rgba(108,99,255,0.5);
}
.spg-generate-btn:active { transform: scale(0.98); }
.spg-generate-btn svg { width: 18px; height: 18px; transition: transform 0.5s; }
.spg-generate-btn.spinning svg { animation: spg-spin 0.5s linear; }

@keyframes spg-spin {
    to { transform: rotate(360deg); }
}

/* Strength Meter */
.spg-strength-section {
    margin-bottom: 18px;
}
.spg-strength-label {
    font-size: 0.78rem;
    color: var(--spg-muted);
    margin-bottom: 6px;
}
.spg-strength-label strong {
    color: var(--spg-text);
}
.spg-strength-bar-bg {
    background: var(--spg-border);
    border-radius: 99px;
    height: 5px;
    overflow: hidden;
}
.spg-strength-bar-fill {
    height: 100%;
    border-radius: 99px;
    width: 0%;
    transition: width 0.4s ease, background 0.4s ease;
}

/* Results */
.spg-results {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.spg-result-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--spg-input-bg);
    border: 1px solid var(--spg-border);
    border-radius: 10px;
    padding: 11px 14px;
    transition: border-color 0.2s;
    animation: spg-fadein 0.3s ease both;
}
.spg-result-item:hover { border-color: rgba(108,99,255,0.5); }

@keyframes spg-fadein {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.spg-result-index {
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--spg-accent);
    min-width: 18px;
    text-align: center;
    background: rgba(108,99,255,0.12);
    border-radius: 4px;
    padding: 3px 5px;
}
.spg-result-text {
    flex: 1;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.88rem;
    color: var(--spg-text);
    word-break: break-all;
    letter-spacing: 0.04em;
}
.spg-copy-btn {
    flex-shrink: 0;
    background: transparent;
    border: 1px solid var(--spg-border);
    color: var(--spg-muted);
    border-radius: 7px;
    padding: 5px 11px;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--spg-font);
    transition: all 0.2s;
}
.spg-copy-btn:hover {
    border-color: var(--spg-green);
    color: var(--spg-green);
}
.spg-copy-btn.copied {
    border-color: var(--spg-green);
    color: var(--spg-green);
    background: rgba(34,211,165,0.1);
}

/* Error */
.spg-error {
    background: rgba(244,63,94,0.1);
    border: 1px solid rgba(244,63,94,0.3);
    color: var(--spg-red);
    font-size: 0.82rem;
    padding: 10px 14px;
    border-radius: 8px;
    text-align: center;
    margin-top: 8px;
}

/* Responsive */
@media (max-width: 480px) {
    .spg-card { padding: 22px 18px; }
    .spg-toggles { grid-template-columns: 1fr; }
}