/* sayi-sistemi.css - Number System Converter Quiz Game */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;800&family=JetBrains+Mono:wght@400;700&display=swap');

body {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    min-height: 100vh;
    margin: 0;
    font-family: 'Inter', sans-serif;
}

.ss-container {
    max-width: 980px;
    margin: 0 auto;
    padding: 15px 20px 40px;
}

/* Header Actions */
.ss-header-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding-top: 8px;
}

.ss-btn-back {
    text-decoration: none;
    color: #38bdf8;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    transition: color 0.2s, transform 0.2s;
    background: rgba(14, 165, 233, 0.1);
    padding: 7px 14px;
    border-radius: 8px;
    border: 1px solid rgba(14, 165, 233, 0.25);
}

.ss-btn-back:hover {
    color: #7dd3fc;
    transform: translateX(-3px);
}

.ss-header-stats {
    display: flex;
    align-items: center;
    gap: 14px;
}

.ss-score-badge {
    background: rgba(14, 165, 233, 0.15);
    border: 1px solid rgba(14, 165, 233, 0.3);
    color: #7dd3fc;
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
}

.ss-score-badge strong {
    color: #38bdf8;
    font-size: 1.1rem;
}

.ss-question-counter {
    color: #94a3b8;
    font-size: 0.88rem;
    font-weight: 600;
    background: rgba(255,255,255,0.06);
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
}

/* Progress Bar */
.ss-progress-wrap {
    width: 100%;
    height: 6px;
    background: rgba(255,255,255,0.08);
    border-radius: 10px;
    margin-bottom: 18px;
    overflow: hidden;
}

.ss-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #0ea5e9, #38bdf8, #7dd3fc);
    border-radius: 10px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 10px rgba(14, 165, 233, 0.5);
}

/* Title */
.ss-title-area {
    text-align: center;
    margin-bottom: 20px;
}

.ss-title {
    font-size: 1.7rem;
    font-weight: 800;
    color: #f1f5f9;
    margin: 0 0 6px;
}

.ss-title i {
    color: #0ea5e9;
    margin-right: 8px;
}

.ss-title span {
    color: #38bdf8;
    font-weight: 300;
    display: block;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 3px;
}

.ss-desc {
    color: #94a3b8;
    font-size: 0.9rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.5;
}

/* Game Arena Grid */
.ss-arena {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 20px;
    align-items: start;
}

/* Left Panel - Conversion Table */
.ss-left-panel {
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: 18px;
    padding: 18px;
    backdrop-filter: blur(12px);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.4), 0 0 0 1px rgba(14, 165, 233, 0.08);
    min-height: 380px;
}

.ss-panel-title {
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #38bdf8;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ss-panel-title i {
    font-size: 0.85rem;
}

.ss-table-header {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    margin-bottom: 8px;
}

.ss-col-head {
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 6px 4px;
    border-radius: 6px;
    text-align: center;
}

.ss-col-head.ss-dec { background: rgba(14, 165, 233, 0.2); color: #38bdf8; }
.ss-col-head.ss-bin { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.ss-col-head.ss-hex { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }

.ss-table-body {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 14px;
    font-family: 'JetBrains Mono', monospace;
}

.ss-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    padding: 6px 4px;
    border-radius: 6px;
    transition: background 0.2s;
}

.ss-row:hover {
    background: rgba(255,255,255,0.04);
}

.ss-row.ss-active-row {
    background: rgba(14, 165, 233, 0.12);
    border: 1px solid rgba(14, 165, 233, 0.3);
    box-shadow: 0 0 12px rgba(14, 165, 233, 0.15);
}

.ss-row span {
    font-size: 0.78rem;
    text-align: center;
    padding: 4px 2px;
    border-radius: 4px;
    font-weight: 600;
}

.ss-row .ss-dec { color: #7dd3fc; }
.ss-row .ss-bin { color: #6ee7b7; }
.ss-row .ss-hex { color: #fcd34d; }

.ss-row .ss-q {
    color: #f8fafc;
    background: rgba(14, 165, 233, 0.25);
    border: 1px dashed rgba(14, 165, 233, 0.6);
    font-weight: 800;
    animation: pulse-q 1.5s infinite;
}

@keyframes pulse-q {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.ss-legend {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.ss-legend-item {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
}

.ss-dec-dot { background: rgba(14, 165, 233, 0.15); color: #38bdf8; }
.ss-bin-dot { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.ss-hex-dot { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }

/* Right Panel */
.ss-right-panel {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 18px;
    padding: 22px;
    backdrop-filter: blur(12px);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.3);
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 380px;
}

.ss-question-header {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ss-q-badge {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: white;
    font-size: 0.65rem;
    font-weight: 800;
    padding: 4px 10px;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.ss-question-text {
    color: #f1f5f9;
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.5;
    margin: 0;
    flex-grow: 1;
}

.ss-choices-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    flex-grow: 1;
}

.ss-choice-btn {
    background: rgba(255,255,255,0.05);
    border: 2px solid rgba(255,255,255,0.12);
    color: #e2e8f0;
    font-size: 0.95rem;
    font-weight: 700;
    padding: 16px 10px;
    border-radius: 12px;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.5px;
}

.ss-choice-btn:hover:not(:disabled) {
    border-color: #0ea5e9;
    background: rgba(14, 165, 233, 0.12);
    color: #38bdf8;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.2);
}

.ss-choice-btn.correct {
    background: rgba(16, 185, 129, 0.15) !important;
    border-color: #10b981 !important;
    color: #34d399 !important;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.3) !important;
}

.ss-choice-btn.wrong {
    background: rgba(239, 68, 68, 0.15) !important;
    border-color: #ef4444 !important;
    color: #f87171 !important;
    animation: ssShake 0.4s ease-in-out;
}

@keyframes ssShake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

.ss-feedback {
    min-height: 28px;
    font-size: 0.88rem;
    font-weight: 700;
    text-align: center;
    border-radius: 8px;
    padding: 4px 10px;
    transition: all 0.3s;
}

.ss-feedback.correct-fb {
    color: #34d399;
    background: rgba(16, 185, 129, 0.1);
}

.ss-feedback.wrong-fb {
    color: #f87171;
    background: rgba(239, 68, 68, 0.1);
}

/* Modal */
.ss-modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.ss-modal-overlay.show {
    display: flex;
    animation: fadeIn 0.3s ease-out;
}

.ss-modal-content {
    background: linear-gradient(135deg, #1e293b, #0f172a);
    border: 1px solid rgba(14, 165, 233, 0.3);
    padding: 40px 35px;
    border-radius: 24px;
    text-align: center;
    max-width: 440px;
    width: 90%;
    box-shadow: 0 30px 60px -15px rgba(0,0,0,0.5), 0 0 40px rgba(14, 165, 233, 0.1);
    animation: slideUp 0.4s ease-out;
}

.ss-modal-icon {
    font-size: 3rem;
    margin-bottom: 10px;
}

.ss-modal-title {
    color: #f1f5f9;
    font-size: 1.6rem;
    font-weight: 800;
    margin: 0 0 15px;
}

.ss-result-rank {
    font-size: 1.3rem;
    font-weight: 800;
    color: #38bdf8;
    padding: 14px 20px;
    background: rgba(14, 165, 233, 0.1);
    border: 2px dashed rgba(14, 165, 233, 0.4);
    border-radius: 12px;
    margin-bottom: 14px;
}

.ss-result-score {
    color: #94a3b8;
    font-size: 1rem;
    margin: 0 0 8px;
}

.ss-result-score strong {
    color: #38bdf8;
    font-size: 1.2rem;
}

.ss-result-desc {
    color: #64748b;
    font-size: 0.88rem;
    line-height: 1.6;
    margin: 0 0 22px;
}

.ss-modal-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.ss-btn-restart {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
    display: flex;
    align-items: center;
    gap: 8px;
}

.ss-btn-restart:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.4);
}

.ss-btn-share {
    background: rgba(255,255,255,0.08);
    color: #94a3b8;
    border: 1px solid rgba(255,255,255,0.15);
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ss-btn-share:hover {
    background: rgba(255,255,255,0.12);
    color: #e2e8f0;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Footer */
footer {
    text-align: center;
    color: #475569;
    font-size: 0.85rem;
    padding: 20px 0 10px;
}

@media (max-width: 750px) {
    .ss-arena {
        grid-template-columns: 1fr;
    }
    .ss-left-panel {
        min-height: auto;
    }
}