/* ==================== SCIENTIFIC CALCULATOR - COMPLETE STYLES ==================== */
/* These styles match the exact HTML structure of your scientific calculator */
/* Uses the same theme as your other tools for consistency */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800&display=swap');

/* ==================== MAIN CONTAINER ==================== */
.scientific-calculator-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.scientific-calculator-wrapper {
    max-width: 950px;
    margin: 0 auto;
}

/* ==================== HEADER SECTION ==================== */
.scientific-calculator-title {
    font-size: 3rem;
    font-weight: 800;
    font-family: 'Poppins', sans-serif;
    text-align: center;
    margin-bottom: 0.5rem;
    color: var(--text);
    letter-spacing: -0.02em;
}

.scientific-calculator-icon {
    font-size: 2.8rem;
    display: inline-block;
    animation: float 3s infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.scientific-calculator-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    font-family: 'Poppins', sans-serif;
}

/* ==================== MAIN CARD ==================== */
.scientific-calculator-card {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 2rem;
    box-shadow: var(--shadow);
}

/* ==================== DISPLAY AREA ==================== */
.scientific-display-area {
    background: var(--bg);
    border-radius: 16px;
    padding: 1.2rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
    position: relative;
    min-height: 100px;
}

.scientific-expression-display {
    font-size: 1rem;
    color: var(--text-light);
    min-height: 24px;
    word-break: break-all;
    font-family: 'Courier New', monospace;
}

.scientific-result-display {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text);
    text-align: right;
    min-height: 50px;
    font-family: 'Courier New', monospace;
    margin-top: 0.3rem;
}

.scientific-memory-indicator {
    position: absolute;
    top: 10px;
    left: 15px;
    font-size: 0.7rem;
    color: var(--primary);
    display: none;
    font-weight: 600;
}

.scientific-memory-indicator.active {
    display: block;
}

.scientific-angle-indicator {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 0.7rem;
    color: var(--text-light);
    font-weight: 600;
    background: var(--surface);
    padding: 2px 8px;
    border-radius: 4px;
    border: 1px solid var(--border);
}

/* ==================== MODE TOGGLE ==================== */
.scientific-mode-toggle {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    justify-content: center;
}

.scientific-mode-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
}

.scientific-mode-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.scientific-mode-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* ==================== BUTTON GRID ==================== */
.scientific-button-grid {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.scientific-button-row {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.5rem;
}

.basic-mode .scientific-button-row {
    grid-template-columns: repeat(4, 1fr);
}

.programmer-mode .scientific-button-row {
    grid-template-columns: repeat(4, 1fr);
}

/* ==================== BUTTON STYLES ==================== */
.scientific-btn {
    padding: 0.8rem 0.5rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    font-family: 'Poppins', sans-serif;
    user-select: none;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scientific-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.scientific-btn:active {
    transform: scale(0.95);
}

.scientific-btn-number {
    background: var(--bg);
    color: var(--text);
}

.scientific-btn-number:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.scientific-btn-operator {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border-color: var(--primary);
}

.scientific-btn-operator:hover {
    background: var(--primary);
    color: white;
}

.scientific-btn-function {
    background: rgba(99, 102, 241, 0.05);
    color: var(--text-light);
    font-size: 0.8rem;
}

.scientific-btn-function:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.scientific-btn-equals {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    font-size: 1.5rem;
}

.scientific-btn-equals:hover {
    background: #4338ca;
    border-color: #4338ca;
}

.scientific-btn-clear {
    background: rgba(220, 38, 38, 0.1);
    color: var(--error);
    border-color: var(--error);
}

.scientific-btn-clear:hover {
    background: var(--error);
    color: white;
}

.scientific-btn-backspace {
    background: rgba(251, 191, 36, 0.1);
    color: #d97706;
    border-color: #d97706;
}

.scientific-btn-backspace:hover {
    background: #d97706;
    color: white;
}

.scientific-btn-memory {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
    border-color: #059669;
    font-size: 0.75rem;
}

.scientific-btn-memory:hover {
    background: #059669;
    color: white;
}

.scientific-btn-history {
    background: rgba(139, 92, 246, 0.1);
    color: #7c3aed;
    border-color: #7c3aed;
}

.scientific-btn-history:hover {
    background: #7c3aed;
    color: white;
}

/* ==================== ACTION BUTTONS ==================== */
.scientific-calculator-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin: 1rem 0;
}

.scientific-action-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
    flex: 1;
    min-width: 100px;
}

.scientific-action-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.scientific-quick-btn {
    flex: 0 1 auto;
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
}

.scientific-quick-btn:active {
    transform: scale(0.95);
}

/* ==================== HISTORY SECTION ==================== */
.scientific-history-section {
    background: var(--bg);
    border-radius: 12px;
    padding: 1.2rem;
    margin: 1rem 0;
    border: 1px solid var(--border);
    max-height: 300px;
    overflow-y: auto;
}

.scientific-history-title {
    color: var(--primary);
    margin-bottom: 0.8rem;
    font-size: 1rem;
}

.scientific-history-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.scientific-history-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0.8rem;
    background: var(--surface);
    border-radius: 8px;
    border-left: 3px solid var(--primary);
    font-size: 0.85rem;
}

.scientific-history-item .history-expression {
    color: var(--text-light);
}

.scientific-history-item .history-result {
    font-weight: 600;
    color: var(--text);
}

.scientific-history-empty {
    text-align: center;
    color: var(--text-light);
    padding: 1rem;
    font-size: 0.9rem;
}

/* ==================== SOLUTION SECTION ==================== */
.scientific-solution-section {
    background: var(--bg);
    border-radius: 12px;
    padding: 1.2rem;
    margin: 1rem 0;
    border: 1px solid var(--border);
}

.scientific-solution-title {
    color: var(--primary);
    margin-bottom: 0.8rem;
    font-size: 1rem;
}

.scientific-solution-content {
    font-size: 0.9rem;
    line-height: 1.6;
}

.scientific-solution-content p {
    margin: 0.3rem 0;
}

.scientific-solution-content strong {
    color: var(--text);
}

.scientific-solution-content .step {
    color: var(--primary);
    font-weight: 600;
}

/* ==================== QUICK EXAMPLES ==================== */
.scientific-quick-examples {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    align-items: center;
    margin-top: 1rem;
}

/* ==================== FOOTER NOTE ==================== */
.scientific-footer-note {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-light);
}

.scientific-footer-note p {
    margin: 0.3rem 0;
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.scientific-history-section {
    animation: slideDown 0.3s ease;
}

.scientific-result-display {
    transition: all 0.2s ease;
}

.scientific-result-display.pop {
    animation: pop 0.2s ease;
}

@keyframes pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 768px) {
    .scientific-calculator-container {
        padding: 0 1rem;
    }
    
    .scientific-calculator-title {
        font-size: 2rem;
    }
    
    .scientific-calculator-card {
        padding: 1rem;
    }
    
    .scientific-button-row {
        grid-template-columns: repeat(6, 1fr);
        gap: 0.4rem;
    }
    
    .basic-mode .scientific-button-row {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .programmer-mode .scientific-button-row {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .scientific-btn {
        padding: 0.6rem 0.3rem;
        font-size: 0.85rem;
        min-height: 40px;
    }
    
    .scientific-result-display {
        font-size: 2rem;
    }
    
    .scientific-mode-toggle {
        flex-wrap: wrap;
    }
    
    .scientific-mode-btn {
        padding: 0.4rem 1rem;
        font-size: 0.8rem;
    }
    
    .scientific-calculator-actions {
        flex-direction: column;
    }
    
    .scientific-action-btn {
        width: 100%;
    }
    
    .scientific-quick-examples {
        gap: 0.5rem;
    }
    
    .scientific-quick-btn {
        padding: 0.3rem 0.8rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .scientific-calculator-title {
        font-size: 1.5rem;
    }
    
    .scientific-calculator-icon {
        font-size: 1.8rem;
    }
    
    .scientific-button-row {
        gap: 0.3rem;
    }
    
    .scientific-btn {
        padding: 0.5rem 0.2rem;
        font-size: 0.75rem;
        min-height: 35px;
        border-radius: 6px;
    }
    
    .scientific-result-display {
        font-size: 1.5rem;
    }
    
    .scientific-expression-display {
        font-size: 0.85rem;
    }
}

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

.scientific-btn:focus-visible,
.scientific-action-btn:focus-visible,
.scientific-mode-btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ==================== SCROLLBAR STYLING ==================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* ==================== PRINT STYLES ==================== */
@media print {
    .scientific-calculator-container {
        margin: 0;
        padding: 0;
    }
    
    .scientific-btn,
    .scientific-action-btn,
    .scientific-quick-btn,
    .scientific-mode-btn {
        display: none !important;
    }
    
    .scientific-calculator-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .scientific-display-area {
        border: 1px solid #ddd;
        background: white;
    }
}

/* ==================== KEYBOARD SHORTCUT INDICATOR ==================== */
.scientific-keyboard-hint {
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-light);
    margin-top: 0.5rem;
    padding: 0.3rem;
    border-top: 1px solid var(--border);
}

.scientific-keyboard-hint kbd {
    background: var(--bg);
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    border: 1px solid var(--border);
    font-family: 'Courier New', monospace;
    font-size: 0.7rem;
}