/**
 * Estilos customizados para o Sistema de Calendário Web
 * Complementa o Tailwind CSS com estilos específicos
 * 
 * @author Sistema de Calendário Web
 * @version 1.0
 */

/* ===== VARIÁVEIS CSS ===== */
:root {
    --primary-color: #3b82f6;
    --secondary-color: #10b981;
    --accent-color: #8b5cf6;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition-fast: 0.15s ease-in-out;
    --transition-medium: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* ===== RESET E BASE ===== */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* ===== CONTAINER PRINCIPAL ===== */
.calendar-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: var(--shadow-heavy);
}

/* ===== HEADER CUSTOMIZADO ===== */
.calendar-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 16px 16px 0 0;
    padding: 2rem;
    text-align: center;
}

.calendar-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.calendar-subtitle {
    opacity: 0.9;
    font-size: 1.1rem;
}

/* ===== NAVEGAÇÃO ===== */
.navigation-container {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--border-color);
}

.nav-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
    min-width: 44px;
    min-height: 44px;
}

.nav-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.nav-button:active {
    transform: translateY(0);
}

.nav-button-primary {
    background: var(--primary-color);
    color: white;
}

.nav-button-primary:hover {
    background: #2563eb;
}

.nav-button-secondary {
    background: var(--secondary-color);
    color: white;
}

.nav-button-secondary:hover {
    background: #059669;
}

.nav-button-accent {
    background: var(--accent-color);
    color: white;
}

.nav-button-accent:hover {
    background: #7c3aed;
}

/* ===== GRID DO CALENDÁRIO ===== */
.calendar-grid {
    background: var(--bg-primary);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--border-color);
}

.calendar-header-row {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-bottom: 2px solid var(--border-color);
}

.calendar-day-header {
    padding: 1rem;
    text-align: center;
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.calendar-day {
    min-height: 80px;
    padding: 1rem;
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.calendar-day:last-child {
    border-right: none;
}

.calendar-day:hover {
    background: #f0f9ff;
    transform: scale(1.02);
    z-index: 10;
    box-shadow: var(--shadow-medium);
}

.calendar-day-current-month {
    background: var(--bg-primary);
    color: var(--text-primary);
}

.calendar-day-other-month {
    background: #f8fafc;
    color: var(--text-secondary);
    opacity: 0.6;
}

.calendar-day-today {
    background: linear-gradient(135deg, var(--primary-color), #2563eb) !important;
    color: white !important;
    font-weight: 700;
    box-shadow: var(--shadow-medium);
}

.calendar-day-today:hover {
    background: linear-gradient(135deg, #2563eb, #1d4ed8) !important;
    transform: scale(1.05);
}

.calendar-day-number {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1;
}

.calendar-day-label {
    font-size: 0.75rem;
    opacity: 0.8;
    margin-top: 0.25rem;
}

/* ===== INFORMAÇÕES ADICIONAIS ===== */
.info-cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.info-card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--border-color);
    transition: all var(--transition-medium);
}

.info-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-heavy);
}

.info-card-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: block;
}

.info-card-title {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.info-card-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 768px) {
    .calendar-title {
        font-size: 2rem;
    }
    
    .navigation-container {
        padding: 1rem;
    }
    
    .nav-button {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }
    
    .calendar-day {
        min-height: 60px;
        padding: 0.75rem;
    }
    
    .calendar-day-number {
        font-size: 1rem;
    }
    
    .calendar-day-header {
        padding: 0.75rem;
        font-size: 0.8rem;
    }
    
    .info-cards-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .info-card {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .calendar-title {
        font-size: 1.75rem;
    }
    
    .calendar-day {
        min-height: 50px;
        padding: 0.5rem;
    }
    
    .calendar-day-number {
        font-size: 0.9rem;
    }
    
    .calendar-day-header {
        padding: 0.5rem;
        font-size: 0.75rem;
    }
    
    .nav-button {
        padding: 0.5rem;
        min-width: 40px;
        min-height: 40px;
    }
}

/* ===== ANIMAÇÕES ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

.animate-slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

.animate-pulse-hover:hover {
    animation: pulse 1s infinite;
}

/* ===== ESTADOS DE LOADING ===== */
.loading-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ===== ACESSIBILIDADE ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles para acessibilidade */
.nav-button:focus,
.calendar-day:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== IMPRESSÃO ===== */
@media print {
    body {
        background: white !important;
    }
    
    .no-print {
        display: none !important;
    }
    
    .calendar-container {
        box-shadow: none !important;
        background: white !important;
    }
    
    .calendar-grid {
        box-shadow: none !important;
        border: 2px solid #000 !important;
    }
    
    .calendar-day {
        border: 1px solid #000 !important;
    }
    
    .calendar-day-today {
        background: #000 !important;
        color: white !important;
    }
}

/* ===== DARK MODE (OPCIONAL) ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f9fafb;
        --text-secondary: #d1d5db;
        --bg-primary: #1f2937;
        --bg-secondary: #111827;
        --border-color: #374151;
    }
    
    body {
        background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    }
    
    .calendar-day-other-month {
        background: #374151;
        color: #9ca3af;
    }
    
    .calendar-header-row {
        background: linear-gradient(135deg, #374151, #4b5563);
    }
}

/* ===== UTILITÁRIOS ===== */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hover-lift {
    transition: transform var(--transition-medium);
}

.hover-lift:hover {
    transform: translateY(-4px);
}