/* Calculator Section */
.calculator-section {
    padding: 80px 0;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.beta-badge {
    background: linear-gradient(45deg, #ffc107, #ff9800);
    color: #000000;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Mode Switcher */
.mode-switcher {
    text-align: center;
    margin-bottom: 30px;
}

.mode-btn {
    background: linear-gradient(45deg, #6366f1, #8b5cf6);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    font-family: 'Benzin', sans-serif;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mode-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

/* BETA Notification */
.beta-notification {
    backdrop-filter: blur(10px);
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 30px;
}

.beta-content {
    display: flex;
    align-items: center;
    gap: 15px;
    color: #ffc107;
    font-family: 'Benzin', sans-serif;
    font-weight: 500;
    font-size: 14px;
}

.beta-content p {
    margin: 0;
    line-height: 1.4;
    flex: 1;
}

.beta-link {
    color: #ffc107;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 193, 7, 0.5);
    transition: all 0.3s ease;
    font-weight: 600;
}

.beta-link:hover {
    color: #ffffff;
    border-bottom-color: #ffffff;
}

/* Calculator Wrapper */
.calculator-wrapper {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 50px;
    align-items: start;
}

.calculator-container {
    backdrop-filter: blur(10px);
    background: rgba(15, 15, 15, 0.3);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.1);
}

.calculator-display {
    margin-bottom: 20px;
}

.calculator-display input {
    width: 100%;
    height: 80px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    color: #ffffff;
    font-family: 'Benzin', sans-serif;
    font-weight: 600;
    font-size: 28px;
    text-align: right;
    padding: 0 20px;
    outline: none;
}

/* Calculator Buttons */
.calculator-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.calc-btn {
    height: 70px;
    border: none;
    border-radius: 15px;
    font-family: 'Benzin', sans-serif;
    font-weight: 600;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.calc-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.calc-btn:hover::before {
    left: 100%;
}

.calc-btn svg {
    width: 24px;
    height: 24px;
}

.number-btn {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.number-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.operation-btn {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.operation-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.func-btn {
    background: rgba(255, 59, 59, 0.2);
    color: #ffffff;
    border: 1px solid rgba(255, 59, 59, 0.3);
}

.func-btn:hover {
    background: rgba(255, 59, 59, 0.3);
    transform: translateY(-2px);
}

.advanced-btn {
    background: rgba(139, 92, 246, 0.2);
    color: #ffffff;
    border: 1px solid rgba(139, 92, 246, 0.3);
    font-size: 16px;
}

.advanced-btn:hover {
    background: rgba(139, 92, 246, 0.3);
    transform: translateY(-2px);
}

.memory-btn {
    background: rgba(34, 197, 94, 0.2);
    color: #ffffff;
    border: 1px solid rgba(34, 197, 94, 0.3);
    font-size: 14px;
}

.memory-btn:hover {
    background: rgba(34, 197, 94, 0.3);
    transform: translateY(-2px);
}

.equals-btn {
    background: linear-gradient(45deg, rgba(59, 130, 255, 0.3), rgba(59, 200, 255, 0.2));
    color: #ffffff;
    border: 1px solid rgba(59, 130, 255, 0.4);
}

.equals-btn:hover {
    background: linear-gradient(45deg, rgba(59, 130, 255, 0.4), rgba(59, 200, 255, 0.3));
    transform: translateY(-2px);
}

.wide-btn {
    grid-column: span 2;
}

.wide-btn svg {
    width: 48px;
}

/* Advanced Panel */
.advanced-panel {
    display: none;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

.advanced-panel .calc-btn {
    height: 50px;
    font-size: 14px;
}

/* Инструкция для продвинутого режима */
.advanced-instruction {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 10px;
    padding: 15px;
    margin: 15px 0;
    font-size: 14px;
    display: none;
}

.advanced-instruction h4 {
    color: #6366f1;
    margin-bottom: 8px;
    font-family: 'Benzin', sans-serif;
}

.instruction-steps {
    display: grid;
    gap: 8px;
}

.instruction-step {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.8);
}

.instruction-step .step-number {
    background: #6366f1;
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

/* Стили для продвинутой цифровой панели */
#advancedNumbersPanel {
    margin-top: 15px;
}

/* Calculator Features */
.calculator-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-item {
    backdrop-filter: blur(5px);
    background: rgba(10, 10, 10, 0.2);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-icon {
    margin-bottom: 15px;
}

.feature-item h4 {
    font-family: 'Benzin', sans-serif;
    font-weight: 600;
    font-size: 18px;
    margin-bottom: 10px;
}

.feature-item p {
    font-family: 'Benzin', sans-serif;
    font-weight: 500;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.4;
}

/* Адаптивность */
@media (max-width: 1024px) {
    .calculator-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .calculator-features {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .feature-item {
        flex: 1;
        min-width: 200px;
    }
}

@media (max-width: 768px) {
    .calculator-section {
        padding: 40px 0;
    }

    .calculator-container {
        padding: 20px;
    }

    .calc-btn {
        height: 60px;
        font-size: 18px;
    }

    .calc-btn svg {
        width: 20px;
        height: 20px;
    }

    .calculator-display input {
        height: 60px;
        font-size: 24px;
    }

    .advanced-panel {
        grid-template-columns: repeat(4, 1fr);
    }

    .calculator-features {
        flex-direction: column;
    }

    .beta-content {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .calculator-buttons {
        gap: 10px;
    }

    .calc-btn {
        height: 55px;
        font-size: 16px;
    }

    .calc-btn svg {
        width: 18px;
        height: 18px;
    }

    .calculator-display input {
        height: 50px;
        font-size: 20px;
    }

    .advanced-panel {
        grid-template-columns: repeat(3, 1fr);
    }

    .advanced-panel .calc-btn {
        height: 45px;
        font-size: 12px;
    }
}

/* Стили для системы авторизации */
.user-menu {
    position: relative;
    display: inline-block;
}

.user-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 10px 15px;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Benzin', sans-serif;
    font-weight: 500;
    transition: all 0.3s ease;
}

.user-btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: rgba(15, 15, 15, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 15px;
    min-width: 200px;
    margin-top: 5px;
    display: none;
    backdrop-filter: blur(10px);
    z-index: 1000;
}

.user-dropdown.show {
    display: block;
}

.user-info {
    padding-bottom: 10px;
    margin-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info strong {
    display: block;
    color: white;
    font-size: 14px;
}

.user-info span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}

.logout-btn {
    width: 100%;
    background: rgba(255, 59, 59, 0.2);
    border: 1px solid rgba(255, 59, 59, 0.3);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Benzin', sans-serif;
    font-size: 14px;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: rgba(255, 59, 59, 0.3);
}

.auth-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 10px 15px;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Benzin', sans-serif;
    font-weight: 500;
    transition: all 0.3s ease;
}

.auth-btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

.login-btn {
    background: linear-gradient(45deg, #6366f1, #8b5cf6);
}

.mobile-user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    font-family: 'Benzin', sans-serif;
}

.mobile-logout-btn {
    background: rgba(255, 59, 59, 0.2);
    border: 1px solid rgba(255, 59, 59, 0.3);
    color: white;
    padding: 5px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
}

.mobile-auth-btn {
    background: linear-gradient(45deg, #6366f1, #8b5cf6);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Benzin', sans-serif;
    font-size: 14px;
}

/* Стили для заблокированного калькулятора */
.calculator-display input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.calc-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.calc-btn:disabled:hover::before {
    left: -100%;
}