/* ========================================
   ARCO - Calendário de Planejamento
   Identidade Visual Completa
   ======================================== */

/* ---- CSS Variables ---- */
:root {
    /* Cores principais */
    --azul-principal: #0B3C5D;
    --laranja-destaque: #F28C28;
    --cinza-escuro: #2E2E2E;
    --cinza-claro: #F4F4F4;
    --branco: #FFFFFF;
    --verde-positivo: #2E7D32;
    --vermelho-alerta: #C62828;
    
    /* Cores derivadas */
    --azul-hover: #0a3350;
    --laranja-hover: #e07d1f;
    --sombra-suave: rgba(11, 60, 93, 0.1);
    --sombra-media: rgba(11, 60, 93, 0.15);
    
    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Espaçamentos */
    --header-height: 80px;
    --action-bar-height: 60px;
    --container-max: 1000px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Bordas */
    --border-radius-sm: 6px;
    --border-radius-md: 10px;
    --border-radius-lg: 16px;
    
    /* Transições */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ---- Reset & Base ---- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--cinza-escuro);
    background-color: var(--cinza-claro);
    min-height: 100vh;
    padding-top: var(--header-height);
    padding-bottom: calc(var(--action-bar-height) + 20px);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---- Container ---- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   HEADER
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--azul-principal);
    box-shadow: 0 2px 12px var(--sombra-media);
}

.header-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.header-brand {
    flex-shrink: 0;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--branco);
    letter-spacing: 2px;
    line-height: 1;
}

.logo-sub {
    font-size: 0.65rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.header-title {
    flex: 1;
}

.header-title h1 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--branco);
    line-height: 1.3;
}

.header-title .subtitle {
    font-size: 0.75rem;
    color: var(--laranja-destaque);
    font-weight: 500;
    margin-top: 2px;
}

/* ========================================
   INTRO SECTION
   ======================================== */
.intro-section {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.intro-card {
    background: var(--branco);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: 0 2px 8px var(--sombra-suave);
    border-left: 4px solid var(--laranja-destaque);
}

.intro-icon {
    font-size: 1.5rem;
    color: var(--laranja-destaque);
    flex-shrink: 0;
}

.intro-text {
    font-size: 0.95rem;
    color: var(--cinza-escuro);
    line-height: 1.5;
}

.intro-text strong {
    color: var(--azul-principal);
}

/* ========================================
   MONTH FILTER
   ======================================== */
.month-filter-section {
    padding: 0 0 var(--spacing-lg);
    position: sticky;
    top: var(--header-height);
    z-index: 100;
    background: var(--cinza-claro);
}

.month-filter {
    display: flex;
    gap: var(--spacing-xs);
    overflow-x: auto;
    padding: var(--spacing-sm) 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
    scroll-snap-type: x mandatory;
}

.month-filter::-webkit-scrollbar {
    display: none;
}

.month-btn {
    flex-shrink: 0;
    scroll-snap-align: start;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-family);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--azul-principal);
    background: var(--branco);
    border: 2px solid transparent;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.month-btn:hover {
    background: var(--azul-principal);
    color: var(--branco);
}

.month-btn.active {
    background: var(--azul-principal);
    color: var(--branco);
    border-color: var(--laranja-destaque);
}

/* ========================================
   MONTH CONTENT
   ======================================== */
.month-content-section {
    padding: 0 0 var(--spacing-xl);
}

.month-content {
    animation: fadeIn var(--transition-normal);
}

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

.month-header {
    background: var(--azul-principal);
    color: var(--branco);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
    text-align: center;
}

.month-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.month-header .month-period {
    font-size: 0.85rem;
    opacity: 0.85;
}

/* Content Cards */
.month-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    background: var(--branco);
    padding: var(--spacing-lg);
    border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
    box-shadow: 0 4px 12px var(--sombra-suave);
}

.content-card {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    background: var(--cinza-claro);
}

.content-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.content-card-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1rem;
}

.content-card-icon.eventos {
    background: rgba(11, 60, 93, 0.1);
    color: var(--azul-principal);
}

.content-card-icon.preparo {
    background: rgba(242, 140, 40, 0.15);
    color: var(--laranja-destaque);
}

.content-card-icon.consumo {
    background: rgba(46, 125, 50, 0.1);
    color: var(--verde-positivo);
}

.content-card-icon.estoque {
    background: rgba(198, 40, 40, 0.1);
    color: var(--vermelho-alerta);
}

.content-card-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--azul-principal);
}

.content-card-body {
    padding-left: calc(36px + var(--spacing-sm));
}

.content-card-body p {
    font-size: 0.9rem;
    color: var(--cinza-escuro);
    margin-bottom: var(--spacing-sm);
}

.content-card-body ul {
    list-style: none;
    padding: 0;
}

.content-card-body li {
    position: relative;
    padding-left: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--cinza-escuro);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.content-card-body li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--azul-principal);
    border-radius: 50%;
}

/* Event Tags */
.event-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.event-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    white-space: nowrap;
}

.event-tag.feriado {
    background: rgba(11, 60, 93, 0.1);
    color: var(--azul-principal);
}

.event-tag.comercial {
    background: rgba(242, 140, 40, 0.15);
    color: #c06b10;
}

.event-tag.local {
    background: rgba(46, 125, 50, 0.1);
    color: var(--verde-positivo);
}

/* Alert Boxes */
.alert-box {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-top: var(--spacing-md);
    font-size: 0.85rem;
}

.alert-box.atencao {
    background: rgba(242, 140, 40, 0.1);
    border-left: 3px solid var(--laranja-destaque);
}

.alert-box.erro {
    background: rgba(198, 40, 40, 0.08);
    border-left: 3px solid var(--vermelho-alerta);
}

.alert-box.regra {
    background: rgba(46, 125, 50, 0.08);
    border-left: 3px solid var(--verde-positivo);
}

.alert-box i {
    flex-shrink: 0;
    margin-top: 2px;
}

.alert-box.atencao i { color: var(--laranja-destaque); }
.alert-box.erro i { color: var(--vermelho-alerta); }
.alert-box.regra i { color: var(--verde-positivo); }

.alert-box-content strong {
    display: block;
    margin-bottom: 2px;
    color: var(--cinza-escuro);
}

/* ========================================
   MESSAGE SECTION
   ======================================== */
.message-section {
    padding: var(--spacing-lg) 0 var(--spacing-2xl);
}

.message-card {
    background: var(--azul-principal);
    color: var(--branco);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.message-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
}

.message-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto var(--spacing-md);
    background: var(--laranja-destaque);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.message-quote {
    position: relative;
    z-index: 1;
}

.message-quote p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

.message-quote strong {
    color: var(--laranja-destaque);
}

.message-brand {
    margin-top: var(--spacing-lg);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0.7;
}

/* ========================================
   FAB - FLOATING ACTION BUTTON
   ======================================== */
.fab-dates {
    position: fixed;
    bottom: calc(var(--action-bar-height) + 20px);
    right: var(--spacing-md);
    width: 56px;
    height: 56px;
    background: var(--azul-principal);
    color: var(--branco);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: 0 4px 16px var(--sombra-media);
    transition: all var(--transition-fast);
    z-index: 500;
}

.fab-dates:hover {
    background: var(--azul-hover);
    transform: scale(1.05);
}

.fab-dates:active {
    transform: scale(0.95);
}

/* ========================================
   MODAL
   ======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--branco);
    width: 100%;
    max-width: 500px;
    max-height: 80vh;
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
    overflow: hidden;
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--cinza-claro);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--azul-principal);
}

.modal-close {
    width: 36px;
    height: 36px;
    background: var(--cinza-claro);
    border: none;
    border-radius: 50%;
    font-size: 1rem;
    color: var(--cinza-escuro);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.modal-close:hover {
    background: #e0e0e0;
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.date-type {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--cinza-claro);
}

.date-type:last-child {
    border-bottom: none;
}

.date-type-icon {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-sm);
    font-size: 1.1rem;
}

.date-type-icon.feriado {
    background: rgba(11, 60, 93, 0.1);
    color: var(--azul-principal);
}

.date-type-icon.comercial {
    background: rgba(242, 140, 40, 0.15);
    color: var(--laranja-destaque);
}

.date-type-icon.local {
    background: rgba(46, 125, 50, 0.1);
    color: var(--verde-positivo);
}

.date-type-content h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--azul-principal);
    margin-bottom: 4px;
}

.date-type-content p {
    font-size: 0.85rem;
    color: var(--cinza-escuro);
    line-height: 1.5;
}

/* ========================================
   ACTION BAR
   ======================================== */
.action-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--action-bar-height);
    background: var(--branco);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0 var(--spacing-md);
    box-shadow: 0 -2px 12px var(--sombra-suave);
    z-index: 900;
}

.action-btn {
    flex: 1;
    max-width: 140px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: var(--spacing-sm);
    background: transparent;
    border: none;
    font-family: var(--font-family);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--azul-principal);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.action-btn i {
    font-size: 1.1rem;
}

.action-btn:hover {
    background: var(--cinza-claro);
}

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

.action-btn.favorited i {
    color: var(--laranja-destaque);
}

.action-btn.favorited .fa-star {
    font-weight: 900;
}

/* ========================================
   TOAST
   ======================================== */
.toast {
    position: fixed;
    bottom: calc(var(--action-bar-height) + 20px);
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--azul-principal);
    color: var(--branco);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: 0 4px 16px var(--sombra-media);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 3000;
}

.toast.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.toast i {
    color: var(--verde-positivo);
}

/* ========================================
   RESPONSIVE - TABLET
   ======================================== */
@media (min-width: 600px) {
    :root {
        --header-height: 90px;
    }
    
    .header-container {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .logo-text {
        font-size: 2rem;
    }
    
    .header-title h1 {
        font-size: 1.15rem;
    }
    
    .month-btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 0.9rem;
    }
    
    .content-card-body {
        padding-left: calc(44px + var(--spacing-md));
    }
    
    .modal {
        border-radius: var(--border-radius-lg);
        margin-bottom: var(--spacing-xl);
    }
    
    .fab-dates {
        right: var(--spacing-xl);
    }
}

/* ========================================
   RESPONSIVE - DESKTOP
   ======================================== */
@media (min-width: 900px) {
    :root {
        --header-height: 100px;
    }
    
    .header-container {
        gap: var(--spacing-xl);
    }
    
    .logo-text {
        font-size: 2.25rem;
    }
    
    .logo-sub {
        font-size: 0.7rem;
    }
    
    .header-title h1 {
        font-size: 1.35rem;
    }
    
    .header-title .subtitle {
        font-size: 0.85rem;
    }
    
    .month-filter {
        justify-content: center;
    }
    
    .month-btn {
        padding: var(--spacing-md) var(--spacing-xl);
    }
    
    .month-cards {
        padding: var(--spacing-xl);
        gap: var(--spacing-lg);
    }
    
    .content-card {
        padding: var(--spacing-lg);
    }
    
    .message-card {
        padding: var(--spacing-2xl);
    }
    
    .message-quote p {
        font-size: 1.15rem;
    }
    
    .action-bar {
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .action-btn {
        flex-direction: row;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.85rem;
    }
}

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

/* Focus states */
button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--laranja-destaque);
    outline-offset: 2px;
}

/* Selection */
::selection {
    background: var(--azul-principal);
    color: var(--branco);
}