/* =========================================================
 * Termback - base.css
 * Estilos base compartilhados
 * ========================================================= */

/* ---------------------------------------------------------
 * CSS Variables (Design Tokens)
 * --------------------------------------------------------- */
:root {
    /* Paleta da marca Termback, azul-petróleo (comercial/marca/ no repositório):
       abismo, petróleo e ciano. Só cores chapadas, sem degradê. No escuro o
       petróleo de texto e botão é um tom mais claro (#2BB3CB), para contraste;
       sobre ele o texto é escuro (--on-brand), como o check do escudo. */

    /* Backgrounds */
    --bg-primary: #061B22;
    --bg-secondary: #082129;
    --bg-card: #0A2730;
    --bg-hover: #0F323C;
    --bg-input: #082129;

    /* Borders */
    --border: #1A3E48;
    --border-focus: #2BB3CB;
    --border-glow: #1E6577;

    /* Text */
    --text-primary: #EDF2F4;   /* 13,8:1 no card */
    --text-secondary: #A6BCC3; /* 7,9:1 */
    --text-muted: #7F98A0;     /* 5,1:1 */

    /* Marca */
    --brand: #2BB3CB;          /* petróleo claro: 6,3:1 no card */
    --brand-rgb: 43, 179, 203;
    --brand-alt: #7FD6E6;      /* ciano */
    --on-brand: #061B22;       /* texto sobre o petróleo: 7,1:1 */

    /* Estados */
    --accent-green: #4ade80;
    --accent-yellow: #f59e0b;
    --accent-red: #f87171;
    --info: #93c5fd;
    --info-rgb: 147, 197, 253;
    --success-rgb: 74, 222, 128;

    /* Shadows */
    --shadow-glow: 0 0 30px rgba(43, 179, 203, 0.10);
    --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.5);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;

    /* Fontes da marca: Space Grotesk nos títulos, Inter no texto, JetBrains Mono nos rótulos */
    --font-head: 'Space Grotesk', 'Inter', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Cores que antes eram fixas no código */
    --danger-text: #fca5a5;
    --text-placeholder: #6F8990;
    --menu-active: #7FD6E6;
    --overlay: rgba(3, 12, 15, 0.72);
    --chart-bar: #2BB3CB;
    --select-arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23A6BCC3'%3E%3Cpath fill-rule='evenodd' d='M5.23 7.21a.75.75 0 011.06.02L10 11.17l3.71-3.94a.75.75 0 111.08 1.04l-4.25 4.5a.75.75 0 01-1.08 0l-4.25-4.5a.75.75 0 01.02-1.06z' clip-rule='evenodd'/%3E%3C/svg%3E");

    color-scheme: dark;
}

/* ---------------------------------------------------------
 * Tema claro
 * As cores de destaque são mais escuras que no tema escuro:
 * texto e badges ficam acima de 4.5:1 de contraste no fundo
 * branco e no fundo tingido dos badges (WCAG AA). A marca vira
 * o petróleo tinta (#126A7C), com texto branco por cima.
 * --------------------------------------------------------- */
:root[data-theme="light"] {
    --bg-primary: #EDF2F4;
    --bg-secondary: #E6EDF0;
    --bg-card: #ffffff;
    --bg-hover: #DEE8EC;
    --bg-input: #ffffff;

    --border: #D0DCE1;
    --border-focus: #126A7C;
    --border-glow: #8CC7D3;

    --text-primary: #061B22;   /* 17:1 no branco */
    --text-secondary: #22404A; /* 11:1 */
    --text-muted: #4D626A;     /* 6.4:1 no branco, 5.4:1 no cinza das tabelas */

    --brand: #126A7C;          /* 6.2:1 no branco */
    --brand-rgb: 18, 106, 124;
    --brand-alt: #126A7C;
    --on-brand: #ffffff;       /* 6.2:1 */

    --accent-green: #15803d;
    --accent-yellow: #92400e;
    --accent-red: #b91c1c;
    --info: #1d4ed8;
    --info-rgb: 29, 78, 216;
    --success-rgb: 21, 128, 61;

    --shadow-glow: 0 1px 2px rgba(6, 27, 34, 0.05), 0 6px 20px rgba(6, 27, 34, 0.06);
    --shadow-card: 0 24px 60px rgba(6, 27, 34, 0.22);

    --danger-text: #b91c1c;
    --text-placeholder: #5E747C; /* 4.8:1: legível, mas mais claro que o texto digitado */
    --menu-active: #126A7C;
    --overlay: rgba(6, 27, 34, 0.45);
    --chart-bar: #1E9AB0;
    --select-arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%234D626A'%3E%3Cpath fill-rule='evenodd' d='M5.23 7.21a.75.75 0 011.06.02L10 11.17l3.71-3.94a.75.75 0 111.08 1.04l-4.25 4.5a.75.75 0 01-1.08 0l-4.25-4.5a.75.75 0 01.02-1.06z' clip-rule='evenodd'/%3E%3C/svg%3E");

    color-scheme: light;
}

/* Badges e botões de aviso: no claro, o fundo tingido fica um pouco mais forte */
:root[data-theme="light"] .badge-ok    { background: rgba(21, 128, 61, 0.10); border-color: rgba(21, 128, 61, 0.35); }
:root[data-theme="light"] .badge-alert { background: rgba(180, 83, 9, 0.10);  border-color: rgba(180, 83, 9, 0.35); }
:root[data-theme="light"] .badge-error { background: rgba(185, 28, 28, 0.08); border-color: rgba(185, 28, 28, 0.35); }
:root[data-theme="light"] .badge-info  { background: rgba(var(--info-rgb), 0.08); border-color: rgba(var(--info-rgb), 0.35); }

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

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---------------------------------------------------------
 * Typography
 * --------------------------------------------------------- */
.font-mono {
    font-family: 'JetBrains Mono', monospace;
}

/* ---------------------------------------------------------
 * Logo
 * --------------------------------------------------------- */
.tb-logo {
    display: block;
    width: auto;
    --logo-escudo: #1E9AB0;
    --logo-check: #061B22;
    --logo-term: #EDF2F4;
    --logo-back: #7FD6E6;
}
/* no claro, a versão colorida: escudo petróleo com check branco */
:root[data-theme="light"] .tb-logo {
    --logo-escudo: #1E9AB0;
    --logo-check: #ffffff;
    --logo-term: #04181B;
    --logo-back: #0A7A66;
}
.tb-logo .tb-escudo { fill: var(--logo-escudo); stroke: var(--logo-escudo); }
.tb-logo .tb-check  { stroke: var(--logo-check); }
.tb-logo .tb-term   { fill: var(--logo-term); }
.tb-logo .tb-back   { fill: var(--logo-back); }

/* títulos na fonte da marca */
h1, h2, h3, .page-title, .stat-value, .modal h2 {
    font-family: var(--font-head);
    letter-spacing: -0.01em;
}

/* ---------------------------------------------------------
 * Buttons
 * --------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    text-decoration: none;
    white-space: nowrap;
}

.btn:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: rgba(var(--brand-rgb), 0.35);
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--brand-rgb), 0.3);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
    border-radius: var(--radius-sm);
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--brand);
    color: var(--on-brand);
    border: none;
}

.btn-primary:hover:not(:disabled) {
    background: var(--brand);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(var(--brand-rgb), 0.4);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-red);
    border-color: rgba(239, 68, 68, 0.2);
}

.btn-danger:hover:not(:disabled) {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
    transform: translateY(-1px);
}

.btn-warning {
    background: rgba(245, 158, 11, 0.08);
    color: var(--accent-yellow);
    border-color: rgba(245, 158, 11, 0.25);
}

.btn-warning:hover:not(:disabled) {
    background: rgba(245, 158, 11, 0.16);
    border-color: rgba(245, 158, 11, 0.45);
}

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

/* ---------------------------------------------------------
 * Form Elements
 * --------------------------------------------------------- */
.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.form-input::placeholder {
    color: var(--text-placeholder);
}

.form-input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(var(--brand-rgb), 0.15);
}

.form-input:hover:not(:focus) {
    border-color: rgba(var(--brand-rgb), 0.3);
}

/* Select com seta própria: a nativa fica colada na borda */
select.form-input {
    appearance: none;
    -webkit-appearance: none;
    padding-right: 40px;
    cursor: pointer;
    background-image: var(--select-arrow);
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
}

select.form-input option {
    background: var(--bg-card);
    color: var(--text-primary);
}

textarea.form-input {
    resize: vertical;
    min-height: 96px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    line-height: 1.6;
}

/* Preenchimento automático do Chrome: sem isto o campo fica branco */
.form-input:-webkit-autofill,
.form-input:-webkit-autofill:hover,
.form-input:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--text-primary);
    -webkit-box-shadow: 0 0 0 1000px var(--bg-input) inset;
    caret-color: var(--text-primary);
    transition: background-color 9999s ease-out;
}

.form-hint {
    margin-top: 6px;
    font-size: 12.5px;
    line-height: 1.45;
    color: var(--text-muted);
}

.form-label .req {
    color: var(--danger-text);
}

input[type="checkbox"] {
    accent-color: var(--brand);
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* Opção liga/desliga com explicação */
.check {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.check:hover {
    border-color: rgba(var(--brand-rgb), 0.35);
}

.check input {
    margin-top: 2px;
}

.check strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
}

.check small {
    display: block;
    margin-top: 2px;
    font-size: 12.5px;
    line-height: 1.45;
    color: var(--text-muted);
}

.check-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
}

/* ---------------------------------------------------------
 * Badges
 * --------------------------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge svg {
    width: 14px;
    height: 14px;
}

.badge-ok {
    background: rgba(var(--success-rgb), 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(var(--success-rgb), 0.3);
}

.badge-alert {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-yellow);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-info {
    background: rgba(var(--info-rgb), 0.15);
    color: var(--info);
    border: 1px solid rgba(var(--info-rgb), 0.3);
}

/* ---------------------------------------------------------
 * Cards
 * --------------------------------------------------------- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

/* ---------------------------------------------------------
 * Spinner / Loading
 * --------------------------------------------------------- */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--brand);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner.sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.spinner.white {
    border-color: rgba(255,255,255,0.3);
    border-top-color: white;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading {
    opacity: 0.5;
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* ---------------------------------------------------------
 * Utilities
 * --------------------------------------------------------- */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }