/* ===========================================
   CALCULADORA DE REGRA DE TRÊS - STYLES
   Tema: Roxo Educacional (#9b59b6)
   Design: Glassmorphism + Vapor Theme
   =========================================== */

:root {
    --primary-purple: #9b59b6;
    --primary-purple-dark: #8e44ad;
    --primary-purple-light: #a569bd;
    --glass-bg: rgba(155, 89, 182, 0.05);
    --glass-border: rgba(155, 89, 182, 0.2);
    --purple-glow: 0 0 20px rgba(155, 89, 182, 0.3);
}

/* ============ Ícone Principal ============ */
.calculator-icon {
    font-size: 4rem;
    color: var(--primary-purple);
    animation: float 3s ease-in-out infinite;
    text-shadow: var(--purple-glow);
}

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

/* ============ Cards Glassmorphism ============ */
.glass-effect {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.glass-effect:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--glass-border);
    transform: translateY(-2px);
    box-shadow: var(--purple-glow);
}

.glass-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

/* ============ Formulário ============ */
.form-control,
.form-select {
    background: rgba(155, 89, 182, 0.05);
    border: 1px solid rgba(155, 89, 182, 0.2);
    color: #fff;
    transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    background: rgba(155, 89, 182, 0.1);
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 0.25rem rgba(155, 89, 182, 0.25);
    color: #fff;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-control:disabled,
.form-control[readonly] {
    background: rgba(0, 0, 0, 0.3);
    border-color: rgba(155, 89, 182, 0.3);
    color: var(--primary-purple-light);
    font-weight: 600;
    text-align: center;
}

.form-label {
    color: var(--primary-purple-light);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-text {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* ============ Botões de Tipo ============ */
.btn-check:checked + .btn-outline-primary {
    background: var(--primary-purple);
    border-color: var(--primary-purple);
    color: white;
}

.btn-outline-primary {
    border-color: var(--primary-purple);
    color: var(--primary-purple-light);
}

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

/* ============ Botão Calcular ============ */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-purple-dark));
    border: none;
    padding: 0.75rem 2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(155, 89, 182, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-purple-light), var(--primary-purple));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(155, 89, 182, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
}

/* ============ Resultados ============ */
#results-container {
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Card Principal - Resultado */
.result-card-main {
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-purple-dark));
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(155, 89, 182, 0.4);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 10px 30px rgba(155, 89, 182, 0.4);
    }
    50% {
        box-shadow: 0 10px 40px rgba(155, 89, 182, 0.6);
    }
}

.result-card-main .result-label {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.5rem;
}

.result-card-main .result-value {
    font-size: 3rem;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    margin: 1rem 0;
}

/* ============ Diagrama Visual ============ */
.diagram-box {
    background: rgba(155, 89, 182, 0.08);
    border: 2px solid var(--glass-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    font-family: 'Courier New', monospace;
}

.diagram-row {
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin: 1rem 0;
    font-size: 1.2rem;
}

.diagram-value {
    background: rgba(155, 89, 182, 0.2);
    border: 2px solid var(--primary-purple);
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-weight: 700;
    color: var(--primary-purple-light);
    min-width: 80px;
}

.diagram-separator {
    font-size: 1.5rem;
    color: var(--primary-purple-light);
    font-weight: 700;
}

.diagram-arrow {
    font-size: 2rem;
    color: var(--primary-purple);
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ============ Explicação Passo a Passo ============ */
.explanation-box {
    background: rgba(0, 0, 0, 0.2);
    border-left: 4px solid var(--primary-purple);
    border-radius: 8px;
    padding: 1.5rem;
}

.step-item {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(155, 89, 182, 0.05);
    border-radius: 8px;
}

.step-item:last-child {
    margin-bottom: 0;
}

.step-number {
    display: inline-block;
    background: var(--primary-purple);
    color: white;
    width: 30px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    border-radius: 50%;
    font-weight: 700;
    margin-right: 0.5rem;
}

.step-formula {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--primary-purple);
    border-radius: 6px;
    padding: 0.75rem;
    margin: 0.5rem 0;
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    color: var(--primary-purple-light);
    text-align: center;
}

.step-description {
    color: rgba(255, 255, 255, 0.8);
    margin: 0.5rem 0 0 0;
}

/* ============ Info Tables ============ */
.info-table {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    padding: 1rem;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.info-row:last-child {
    border-bottom: none;
}

.info-row span:first-child {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ============ Exemplos ============ */
.example-item {
    background: rgba(155, 89, 182, 0.05);
    border-left: 3px solid var(--primary-purple);
    padding: 0.75rem;
    border-radius: 5px;
}

.example-item strong {
    color: var(--primary-purple-light);
}

.example-item p {
    color: rgba(255, 255, 255, 0.7);
}

/* ============ Alerts ============ */
.alert-info {
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid rgba(52, 152, 219, 0.3);
    color: #3498db;
}

/* ============ Badges ============ */
.badge.bg-success {
    background: #27ae60 !important;
}

.badge.bg-warning {
    background: #f39c12 !important;
}

.badge.bg-info {
    background: #3498db !important;
}

/* ============ Breadcrumb ============ */
.breadcrumb {
    background: rgba(255, 255, 255, 0.03);
    margin-bottom: 0;
}

.breadcrumb-item a {
    color: var(--primary-purple-light);
    transition: color 0.2s ease;
}

.breadcrumb-item a:hover {
    color: var(--primary-purple);
}

.breadcrumb-item.active {
    color: rgba(255, 255, 255, 0.6);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: rgba(255, 255, 255, 0.3);
}

/* ============ Text Utilities ============ */
.text-primary-custom {
    color: var(--primary-purple-light) !important;
}

/* ============ Responsividade ============ */

/* Tablets */
@media (max-width: 992px) {
    .calculator-icon {
        font-size: 3rem;
    }

    .result-card-main .result-value {
        font-size: 2.5rem;
    }

    .diagram-row {
        font-size: 1rem;
    }

    .diagram-value {
        padding: 0.5rem 1rem;
        min-width: 60px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .calculator-icon {
        font-size: 2.5rem;
    }

    .display-4 {
        font-size: 2rem;
    }

    .lead {
        font-size: 1rem;
    }

    .result-card-main {
        padding: 1.5rem;
    }

    .result-card-main .result-value {
        font-size: 2rem;
    }

    .btn-primary {
        padding: 0.65rem 1.5rem;
        font-size: 0.9rem;
    }

    .diagram-box {
        padding: 1rem;
    }

    .diagram-row {
        flex-direction: column;
        gap: 0.5rem;
        font-size: 0.9rem;
    }

    .diagram-separator {
        transform: rotate(90deg);
    }

    .step-formula {
        font-size: 0.95rem;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group label {
        border-radius: 0.375rem !important;
        margin-bottom: 0.5rem;
    }
}

/* Mobile Pequeno */
@media (max-width: 576px) {
    .calculator-icon {
        font-size: 2rem;
    }

    .display-4 {
        font-size: 1.75rem;
    }

    .result-card-main .result-value {
        font-size: 1.75rem;
    }

    h2.h5 {
        font-size: 1.1rem;
    }

    h3.h6 {
        font-size: 1rem;
    }

    .diagram-value {
        padding: 0.5rem;
        font-size: 0.9rem;
        min-width: 50px;
    }
}

/* ============ Animações ============ */
.loading {
    opacity: 0.5;
    pointer-events: none;
}

.loading::after {
    content: "⏳";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ============ Print Styles ============ */
@media print {
    .btn, .navbar, .footer, .breadcrumb {
        display: none !important;
    }

    .glass-effect {
        background: white;
        border: 1px solid #ddd;
    }

    .result-card-main {
        background: white;
        color: black;
    }

    .diagram-box {
        border: 2px solid #9b59b6;
    }
}