/* ============================================================
   base.css — tokens, reset, tipografia, nav, rodapé, botões
   Reutilizável em todos os templates do portal.
   ============================================================ */

/* ── TOKENS ──────────────────────────────────────────────────────────────── */
:root {
    --bg:            #faf9f6;
    --bg-subtle:     #f3f2ee;
    --bg-card:       #ffffff;
    --border:        #dddad3;
    --border-strong: #b8b5ac;
    --text:          #1a1915;
    --text-muted:    #6e6b63;
    --text-faint:    #9e9b93;
    --accent:        #2952a3;
    --accent-hover:  #1e3f82;
    --code-bg:       #eeecea;
    --code-text:     #2d2b26;
    --error:         #a3291e;
    --error-bg:      #fdf2f1;
    --error-border:  #e8b4b0;
    --success:       #2d6a4f;
    --success-bg:    #f0f7f4;
    --success-border:#95d5b2;
    --warn:          #92400e;
    --warn-bg:       #fff8f0;
    --warn-border:   #f6ad55;
    --danger:        #9b1c1c;
    --danger-bg:     #fef5f5;
    --danger-border: #f4a3a3;
    --font-mono:     'IBM Plex Mono', monospace;
    --radius:        5px;
    --transition:    0.18s ease;
}

[data-theme="dark"] {
    --bg:            #1e1d1a;
    --bg-subtle:     #252421;
    --bg-card:       #2a2926;
    --border:        #3c3930;
    --border-strong: #524e46;
    --text:          #e8e5de;
    --text-muted:    #9a9588;
    --text-faint:    #68655e;
    --accent:        #7da8d8;
    --accent-hover:  #9bbfe3;
    --code-bg:       #161513;
    --code-text:     #d4d0c4;
    --error:         #f87171;
    --error-bg:      #2d1a1a;
    --error-border:  #6b3030;
    --success:       #74c69d;
    --success-bg:    #0a1a12;
    --success-border:#2d6a4f;
    --warn:          #f6ad55;
    --warn-bg:       #1c1000;
    --warn-border:   #7c3d0e;
    --danger:        #f87171;
    --danger-bg:     #1c0808;
    --danger-border: #7f1d1d;
}

/* ── RESET ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; overflow-y: scroll; }

body {
    font-family: 'IBM Plex Sans', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background var(--transition), color var(--transition);
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ── TIPOGRAFIA ──────────────────────────────────────────────────────────── */
h1, h2 {
    font-family: 'Fraunces', Georgia, 'Times New Roman', serif;
    font-optical-sizing: auto;
}

h1 {
    font-size: clamp(3.8rem, 9vw, 7rem);
    font-weight: 300;
    letter-spacing: -0.03em;
    line-height: 1.0;
    color: var(--text);
}

h2 {
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    font-weight: 400;
    letter-spacing: -0.025em;
    margin-bottom: 0.75rem;
}

h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.45rem;
    letter-spacing: 0.01em;
}

/* ── LAYOUT ──────────────────────────────────────────────────────────────── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 6%;
}

.section-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 5rem 6%;
}

/* ── SECTION COMUM ───────────────────────────────────────────────────────── */
.section-header { margin-bottom: 2.5rem; }

.section-tag {
    display: block;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.68rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 0.6rem;
}

.section-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 480px;
    line-height: 1.7;
    margin-top: 0.4rem;
}

/* ── NAV ─────────────────────────────────────────────────────────────────── */
nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6%;
    height: 52px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition), border-color var(--transition);
}

.nav-logo {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text);
    text-decoration: none;
    transition: color var(--transition);
}
.nav-logo:hover { color: var(--text-muted); }

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }

.nav-right {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

/* Theme toggle */
.theme-toggle {
    width: 30px; height: 30px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-faint);
    transition: all var(--transition);
}
.theme-toggle:hover {
    border-color: var(--border-strong);
    color: var(--text-muted);
}
.theme-toggle svg {
    width: 13px; height: 13px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

[data-theme="light"] .icon-moon { display: block; }
[data-theme="light"] .icon-sun  { display: none;  }
[data-theme="dark"]  .icon-sun  { display: block; }
[data-theme="dark"]  .icon-moon { display: none;  }

/* Nav profile */
.nav-profile {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 0.7rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.8rem;
    line-height: 1;
    transition: all var(--transition);
}
.nav-profile:hover {
    border-color: var(--border-strong);
    color: var(--text);
}
.avatar-xs {
    width: 14px; height: 14px;
    background: var(--bg-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.58rem;
    font-weight: 700;
    color: var(--text-muted);
    font-family: 'IBM Plex Mono', monospace;
    flex-shrink: 0;
}

/* ── BOTÕES ──────────────────────────────────────────────────────────────── */
.btn {
    padding: 0.55rem 1.35rem;
    border-radius: var(--radius);
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    letter-spacing: 0.01em;
    line-height: 1;
    transition: all var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
}

.btn-primary {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}
.btn-primary:hover {
    background: var(--text-muted);
    border-color: var(--text-muted);
    color: var(--bg);
}

.btn-outline {
    background: transparent;
    color: var(--text-muted);
    border-color: var(--border);
}
.btn-outline:hover {
    border-color: var(--border-strong);
    color: var(--text);
}

/* ── RODAPÉ ──────────────────────────────────────────────────────────────── */
footer {
    padding: 1.75rem 6%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    border-top: 1px solid var(--border);
}

.footer-logo {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
}

footer p {
    color: var(--text-faint);
    font-size: 0.78rem;
    font-family: 'IBM Plex Mono', monospace;
}

/* ── CODE BLOCK ──────────────────────────────────────────────────────────── */
.code-block {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem 1.75rem;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.78rem;
    line-height: 1.9;
    overflow-x: auto;
    color: var(--code-text);
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.code-block .c-comment { color: var(--text-faint); }
.code-block .c-method  { color: var(--text); font-weight: 500; }
.code-block .c-url     { color: var(--text-muted); }
.code-block .c-header  { color: var(--text-muted); }
.code-block .c-key     { color: var(--text); }
.code-block .c-val     { color: var(--text-muted); }
.code-block .c-string  { color: var(--accent); }
.code-block .c-sep     { color: var(--border-strong); }

/* ── FORMULÁRIOS ─────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.1rem; }

.form-group label {
    display: block;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 0.4rem;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="search"] {
    width: 100%;
    padding: 0.6rem 0.85rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.9rem;
    font-family: 'IBM Plex Sans', sans-serif;
    outline: none;
    transition: border-color var(--transition);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="search"]:focus {
    border-color: var(--border-strong);
}

[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="password"],
[data-theme="dark"] input[type="email"],
[data-theme="dark"] input[type="search"] {
    background: var(--bg-subtle);
}

.error-box {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: var(--radius);
    padding: 0.7rem 0.9rem;
    margin-bottom: 1.1rem;
    font-size: 0.85rem;
    color: var(--error);
    line-height: 1.5;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.field-errors {
    margin-top: 0.3rem;
    font-size: 0.78rem;
    color: var(--error);
    font-family: 'IBM Plex Mono', monospace;
}

/* ── CODE INLINE ─────────────────────────────────────────────────────────── */
code {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.82em;
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 0.1em 0.35em;
    color: var(--code-text);
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}

/* ── CARD ────────────────────────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: background var(--transition), border-color var(--transition);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    padding: 1.1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    transition: border-color var(--transition);
}

.card-icon {
    width: 34px; height: 34px;
    border-radius: var(--radius);
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    flex-shrink: 0;
    filter: grayscale(0.2);
    transition: background var(--transition), border-color var(--transition);
}

.card-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}

.card-subtitle {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
    line-height: 1.5;
}

.card-body { padding: 1.5rem; }

/* ── EMPTY STATE ─────────────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    opacity: 0.4;
    display: block;
}

.empty-state p {
    font-size: 0.88rem;
    line-height: 1.65;
}

/* ── RESPONSIVO (nav) ────────────────────────────────────────────────────── */
@media (max-width: 600px) {
    nav {
        justify-content: flex-start;
        gap: 1.5rem;
        padding: 0 1rem;
        overflow-x: auto;
        scrollbar-width: none;
    }
    nav::-webkit-scrollbar { display: none; }
    .nav-links { gap: 1.25rem; }
}