/* ============================================================
   HARPY P&D — APEX PRECISION DESIGN SYSTEM
   Shared stylesheet for all platform pages (Lab3DVet)
   Paleta: Azul-marinho profundo (alinhada ao viewer GLB 3D)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;600&display=swap');

/* --- CSS VARIABLES (SINGLE SOURCE OF TRUTH) --- */
:root {
    --bg-color:       #020617;          /* slate-950 — fundo principal */
    --surface:        #0f172a;          /* slate-900 — cards e painéis */
    --surface-2:      #1e293b;          /* slate-800 — hover states */
    --text-main:      #f8fafc;          /* slate-50  — texto primário */
    --text-muted:     #94a3b8;          /* slate-400 — texto secundário */
    --text-subtle:    #64748b;          /* slate-500 — labels, placeholders */
    --accent:         #0ea5e9;          /* sky-500   — accent principal */
    --accent-hover:   #38bdf8;          /* sky-400   — accent hover */
    --accent-dim:     rgba(14, 165, 233, 0.15); /* accent translúcido */
    --accent-border:  rgba(14, 165, 233, 0.25); /* bordas accent */
    --accent-danger:  #ef4444;          /* red-500   */
    --accent-success: #10b981;          /* emerald-500 */
    --border-color:   rgba(14, 165, 233, 0.15); /* bordas padrão */
    --border-hover:   rgba(14, 165, 233, 0.45); /* bordas hover */
    --font-sans:      'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono:      'JetBrains Mono', 'Fira Code', Consolas, monospace;
}

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

/* --- BASE --- */
html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--text-main);
}

h1 { font-size: clamp(2rem, 5vw, 4.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); border-bottom: 1px solid var(--border-color); padding-bottom: 0.75rem; margin-bottom: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem; color: var(--accent); text-transform: uppercase; font-family: var(--font-mono); letter-spacing: 0.05em; }

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

strong { color: var(--text-main); font-weight: 600; }

/* --- UTILITY CLASSES --- */
.mono-text {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-subtle);
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 0.5rem;
    display: block;
}

.badge {
    display: inline-block;
    background: var(--accent);
    color: var(--bg-color);
    padding: 0.2rem 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 2px;
}

.badge-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.2rem 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 2px;
}

/* --- LAYOUT --- */
.page-container {
    padding: 0 4vw;
    max-width: 1600px;
    margin: 0 auto;
}

section:not(.shelf):not(.no-section-style) {
    padding: 5rem 0;
    border-bottom: 1px solid var(--border-color);
}

/* --- PAGE HEADER (shared top bar for sub-pages) --- */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 4vw;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background: rgba(2, 6, 23, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 100;
}

.page-header .logo {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.page-header .logo span { color: var(--accent); }

.back-btn {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    cursor: pointer;
    background: none;
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    transition: color 0.2s, border-color 0.2s;
    border-radius: 2px;
}
.back-btn:hover {
    color: var(--accent);
    border-color: var(--accent-border);
    background: var(--accent-dim);
}

/* --- NAV (landing / auth pages) --- */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 4vw;
    border-bottom: 1px solid var(--border-color);
    background: rgba(2, 6, 23, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
}

/* --- BUTTONS --- */
.btn {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none;
    text-align: center;
    border: none;
    border-radius: 2px;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 20px rgba(14, 165, 233, 0.3);
    color: #fff;
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}
.btn-ghost:hover {
    color: var(--accent);
    border-color: var(--accent-border);
    background: var(--accent-dim);
}

.btn-danger {
    background: var(--accent-danger);
    color: #fff;
}

/* --- FORM ELEMENTS --- */
label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent);
    margin-bottom: 0.4rem;
}

input, textarea, select {
    width: 100%;
    background: rgba(14, 165, 233, 0.05);
    border: none;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-main);
    font-family: var(--font-mono);
    font-size: 0.95rem;
    padding: 0.75rem 0;
    outline: none;
    transition: border-color 0.2s ease;
    appearance: none;
    -webkit-appearance: none;
}

input:focus, textarea:focus, select:focus {
    border-bottom-color: var(--accent);
}

input::placeholder, textarea::placeholder {
    color: var(--text-subtle);
    opacity: 0.7;
}

select option {
    background: var(--surface);
    color: var(--text-main);
}

.input-group {
    margin-bottom: 1.5rem;
}

/* --- CARDS --- */
.card {
    border: 1px solid var(--border-color);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: border-color 0.3s ease, background 0.3s ease;
    background: var(--surface);
    position: relative;
    border-radius: 4px;
}

.card:hover {
    border-color: var(--accent-border);
    background: var(--surface-2);
}

/* --- DATA TABLE --- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-main);
}

.data-table th, .data-table td {
    padding: 1rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

.data-table th {
    color: var(--text-subtle);
    font-weight: 400;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.data-table tr:hover td { background: rgba(14, 165, 233, 0.04); }

/* --- PANELS / SIDEBARS --- */
.panel {
    background: var(--surface);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    border-radius: 4px;
}

.panel-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-subtle);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
    margin-bottom: 0.75rem;
}

/* --- GRID UTILITIES --- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-auto { grid-template-columns: 1fr; }
}

/* --- MODAL OVERLAY (Auth) --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(2, 6, 23, 0.92);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    z-index: 1000;
    padding: 1rem;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    background: var(--surface);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 480px;
    padding: 3rem 2.5rem;
    position: relative;
    border-radius: 6px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(14, 165, 233, 0.1);
}

.modal-container h2 {
    border-bottom: 1px solid var(--border-color);
    font-size: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
}

.close-modal-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    width: 2rem;
    height: 2rem;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    padding: 0;
    transition: all 0.2s;
    align-self: auto;
    margin-top: 0;
    border-radius: 2px;
}
.close-modal-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
}

/* --- AUTH FORM SPECIFICS --- */
#login-button, #waitlist-button {
    width: 100%;
    padding: 1rem;
    background: var(--accent);
    color: #fff;
    border: none;
    font-family: var(--font-mono);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s;
    border-radius: 2px;
}
#login-button:hover, #waitlist-button:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 20px rgba(14, 165, 233, 0.35);
}

.secondary-action {
    background: none;
    border: none;
    color: var(--text-subtle);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    margin-top: 1.5rem;
    text-decoration: underline;
    text-underline-offset: 3px;
    width: 100%;
    text-align: center;
    padding: 0;
}
.secondary-action:hover { color: var(--accent); background: transparent; }

#login-error, #waitlist-error {
    color: var(--accent-danger);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    margin-top: 0.75rem;
    text-align: center;
}

/* --- SCROLL AREA (chat, models) --- */
.scroll-area {
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.scroll-area::-webkit-scrollbar { width: 4px; }
.scroll-area::-webkit-scrollbar-track { background: transparent; }
.scroll-area::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 2px; }

/* --- CHAT STYLES (Agente RAG) --- */
.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 60px);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.chat-message {
    max-width: 75%;
    padding: 1rem 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    line-height: 1.65;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    background: var(--surface);
    border-radius: 4px;
}

.chat-message.user {
    align-self: flex-end;
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.chat-message.assistant {
    align-self: flex-start;
}

.chat-input-bar {
    border-top: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    background: var(--bg-color);
}

.chat-input-bar textarea {
    flex: 1;
    resize: none;
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    min-height: 48px;
    max-height: 160px;
    font-size: 0.9rem;
    line-height: 1.5;
    background: var(--surface);
    color: var(--text-main);
    border-radius: 4px;
}

/* --- DASHBOARD SIDEBAR & LAYOUT --- */
.app-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: calc(100vh - 60px);
}

.sidebar {
    border-right: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: var(--bg-color);
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    background: transparent;
    text-decoration: none;
    width: 100%;
    text-align: left;
    border-radius: 3px;
}

.sidebar-item:hover, .sidebar-item.active {
    color: var(--accent);
    border-color: var(--accent-border);
    background: var(--accent-dim);
}

.sidebar-section-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-subtle);
    padding: 1rem 0.75rem 0.25rem;
    opacity: 0.6;
}

/* --- MODEL VIEWER OVERLAY --- */
.viewer-ui {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 10;
}

.viewer-hud {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    background: rgba(2, 6, 23, 0.85);
    pointer-events: auto;
    border-radius: 3px;
    backdrop-filter: blur(8px);
}

/* --- STATUS INDICATORS --- */
.status-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-dot.online  { background: var(--accent-success); box-shadow: 0 0 6px var(--accent-success); }
.status-dot.offline { background: var(--accent-danger); }
.status-dot.pending { background: var(--text-subtle); }

/* --- FOOTER --- */
.app-footer {
    border-top: 1px solid var(--border-color);
    padding: 2rem 4vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-subtle);
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .app-layout { grid-template-columns: 1fr; }
    .sidebar { display: none; }
    .chat-messages { padding: 1rem; }
    .chat-message { max-width: 92%; }
    .page-header { padding: 1rem 1.5rem; }
}