/* ================================================================
   Monoq — Sistema de diseño completo
   ================================================================ */

/* ── Variables ───────────────────────────────────────────────────── */
:root {
    /* Paleta */
    --clr-bg:          #0d0d12;
    --clr-surface:     #17171f;
    --clr-surface2:    #1e1e2a;
    --clr-border:      #2a2a3a;
    --clr-border2:     #3a3a50;
    --clr-primary:     #7c3aed;
    --clr-primary-h:   #6d28d9;
    --clr-accent:      #06b6d4;
    --clr-success:     #22c55e;
    --clr-warning:     #f59e0b;
    --clr-danger:      #ef4444;
    --clr-recording:   #ef4444;
    --clr-text:        #f0f0f8;
    --clr-text-2:      #a0a0b8;
    --clr-text-3:      #60607a;

    /* Tipografía */
    --font-sans:   system-ui, -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;
    --font-mono:   'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    /* Espaciado */
    --radius:    8px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    /* Sombras */
    --shadow-sm: 0 1px 3px rgba(0,0,0,.4);
    --shadow-md: 0 4px 16px rgba(0,0,0,.5);
    --shadow-lg: 0 8px 32px rgba(0,0,0,.6);
}

/* ── Reset ────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
    font-family: var(--font-sans);
    background: var(--clr-bg);
    color: var(--clr-text);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--clr-primary); text-decoration: none; }
a:hover { color: var(--clr-accent); }
img, video { display: block; max-width: 100%; }
button { cursor: pointer; font: inherit; border: none; background: none; }
input, textarea { font: inherit; }
.hidden { display: none !important; }

/* ── Tipografía ───────────────────────────────────────────────────── */
h1 { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
h4 { font-size: .95rem; font-weight: 600; color: var(--clr-text-2); text-transform: uppercase; letter-spacing: .06em; margin: 1.2rem 0 .5rem; }
.text-muted { color: var(--clr-text-2); font-size: .875rem; }

/* ── Botones ──────────────────────────────────────────────────────── */
.btn, .btn-primary, .btn-outline, .btn-danger, .btn-sm {
    display: inline-flex; align-items: center; gap: .45rem;
    padding: .65rem 1.4rem; border-radius: var(--radius);
    font-weight: 600; font-size: .9rem;
    transition: background .15s, opacity .15s, transform .1s;
    white-space: nowrap;
}
.btn-primary { background: var(--clr-primary); color: #fff; }
.btn-primary:hover { background: var(--clr-primary-h); }
.btn-outline {
    background: transparent; color: var(--clr-text-2);
    border: 1.5px solid var(--clr-border2);
}
.btn-outline:hover { border-color: var(--clr-primary); color: var(--clr-text); }
.btn-danger { background: var(--clr-danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: .35rem .8rem; font-size: .8rem; border-radius: 6px; }
.btn-accent { background: var(--clr-accent); color: #0a1a1f; font-weight: 700; }
.btn-accent:hover { background: #05a0bb; }
button:disabled { opacity: .45; cursor: not-allowed; }
button:active:not(:disabled) { transform: scale(.97); }

/* ── Formularios ──────────────────────────────────────────────────── */
.field { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1rem; }
label { font-size: .85rem; font-weight: 600; color: var(--clr-text-2); }
input[type="text"], input[type="password"], input[type="email"] {
    background: var(--clr-surface2);
    border: 1.5px solid var(--clr-border);
    border-radius: var(--radius);
    color: var(--clr-text);
    padding: .7rem 1rem;
    font-size: 1rem;
    transition: border-color .15s;
    width: 100%;
}
input:focus { outline: none; border-color: var(--clr-primary); }

/* ── Toast ────────────────────────────────────────────────────────── */
.toast {
    position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%) translateY(1rem);
    background: var(--clr-surface2); border: 1px solid var(--clr-border2);
    color: var(--clr-text); padding: .75rem 1.5rem; border-radius: 100px;
    font-size: .9rem; box-shadow: var(--shadow-md);
    opacity: 0; transition: opacity .3s, transform .3s; z-index: 9999;
    pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast-success { border-color: var(--clr-success); }
.toast-error   { border-color: var(--clr-danger); }

/* ================================================================
   LANDING PAGE
   ================================================================ */
.landing-nav {
    display: flex; align-items: center; justify-content: space-between;
    padding: 1.4rem 2rem; max-width: 1100px; margin: 0 auto;
}
.logo {
    font-family: var(--font-mono); font-size: 1.5rem; font-weight: 800;
    color: var(--clr-text);
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.landing-hero {
    text-align: center; padding: 5rem 1.5rem 3rem;
    max-width: 800px; margin: 0 auto;
}
.landing-hero h1 { margin-bottom: 1.2rem; }
.hero-sub { font-size: 1.2rem; color: var(--clr-text-2); margin-bottom: 2.5rem; max-width: 560px; margin-inline: auto; }
.hero-cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.badge-new {
    display: inline-block; background: var(--clr-primary); color: #fff;
    font-size: .72rem; font-weight: 700; padding: .2rem .6rem; border-radius: 100px;
    vertical-align: middle; margin-left: .4rem; letter-spacing: .05em;
}
.features {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem; max-width: 1100px; margin: 4rem auto; padding: 0 1.5rem;
}
.feature-card {
    background: var(--clr-surface); border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg); padding: 1.8rem;
}
.feature-icon { font-size: 2rem; margin-bottom: 1rem; }
.feature-card h3 { margin-bottom: .5rem; }
.feature-card p { color: var(--clr-text-2); font-size: .9rem; line-height: 1.6; }
.how-it-works {
    max-width: 700px; margin: 0 auto 5rem; padding: 0 1.5rem; text-align: center;
}
.how-it-works h2 { margin-bottom: 2rem; }
.steps { display: flex; flex-direction: column; gap: 1.2rem; text-align: left; }
.step {
    display: flex; gap: 1.2rem; align-items: flex-start;
    background: var(--clr-surface); border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg); padding: 1.2rem 1.5rem;
}
.step-num {
    flex-shrink: 0; width: 2rem; height: 2rem;
    background: var(--clr-primary); color: #fff;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: .85rem;
}
.step-body strong { display: block; margin-bottom: .2rem; }
.step-body p { color: var(--clr-text-2); font-size: .9rem; }
.landing-footer {
    border-top: 1px solid var(--clr-border); padding: 2rem;
    text-align: center; color: var(--clr-text-3); font-size: .85rem;
}

/* ================================================================
   LOGIN
   ================================================================ */
.login-page {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: 1rem;
}
.login-card {
    width: 100%; max-width: 400px;
    background: var(--clr-surface); border: 1px solid var(--clr-border);
    border-radius: var(--radius-xl); padding: 2.5rem;
}
.login-logo { text-align: center; margin-bottom: 2rem; }
.login-logo .logo { font-size: 2rem; }
.login-card h2 { text-align: center; margin-bottom: 1.5rem; color: var(--clr-text-2); font-size: 1rem; font-weight: 400; }
#login-error { color: var(--clr-danger); font-size: .85rem; margin-top: .5rem; display: none; }

/* ================================================================
   DASHBOARD
   ================================================================ */
.dashboard-layout { display: flex; min-height: 100vh; }
.sidebar {
    width: 240px; flex-shrink: 0;
    background: var(--clr-surface); border-right: 1px solid var(--clr-border);
    padding: 1.5rem 1rem; display: flex; flex-direction: column; gap: .5rem;
}
.sidebar .logo { padding: .5rem .8rem; margin-bottom: 1rem; }
.sidebar-link {
    display: flex; align-items: center; gap: .7rem; padding: .65rem .8rem;
    border-radius: var(--radius); color: var(--clr-text-2);
    font-size: .9rem; font-weight: 500; transition: background .15s, color .15s;
}
.sidebar-link:hover, .sidebar-link.active {
    background: var(--clr-surface2); color: var(--clr-text);
}
.sidebar-bottom { margin-top: auto; }
.dashboard-main { flex: 1; padding: 2rem 2.5rem; overflow-y: auto; }
.dashboard-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 2rem; padding-bottom: 1rem; border-bottom: 1px solid var(--clr-border);
}
.sessions-grid { display: flex; flex-direction: column; gap: 1rem; }
.session-card {
    background: var(--clr-surface); border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg); padding: 1.4rem 1.6rem;
    transition: border-color .15s;
}
.session-card:hover { border-color: var(--clr-border2); }
.session-card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: .8rem; }
.session-name { font-size: 1rem; font-weight: 600; }
.session-date { font-size: .8rem; color: var(--clr-text-2); margin-top: .2rem; }
.session-meta { display: flex; gap: 1.2rem; font-size: .85rem; color: var(--clr-text-2); margin-bottom: 1rem; }
.session-actions { display: flex; gap: .6rem; flex-wrap: wrap; }
.session-badge {
    padding: .25rem .7rem; border-radius: 100px; font-size: .75rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: .05em;
}
.badge-waiting   { background: rgba(124,58,237,.15); color: var(--clr-primary); }
.badge-live      { background: rgba(6,182,212,.15);  color: var(--clr-accent); }
.badge-recording { background: rgba(239,68,68,.15);  color: var(--clr-recording); }
.badge-ended     { background: rgba(96,96,122,.15);  color: var(--clr-text-3); }
.empty-state {
    text-align: center; padding: 4rem 2rem;
    color: var(--clr-text-2); background: var(--clr-surface);
    border: 1px dashed var(--clr-border); border-radius: var(--radius-lg);
}
.loading { padding: 2rem; text-align: center; color: var(--clr-text-2); }
#pagination { display: flex; gap: .8rem; align-items: center; margin-top: 1.5rem; justify-content: center; color: var(--clr-text-2); }
.participant-list, .recording-list { list-style: none; display: flex; flex-direction: column; gap: .6rem; }
.participant-list li, .recording-list li {
    background: var(--clr-surface2); border-radius: var(--radius); padding: .6rem .9rem;
    font-size: .9rem; display: flex; gap: .7rem; align-items: center; flex-wrap: wrap;
}
.track-type {
    padding: .15rem .5rem; border-radius: 4px; font-size: .72rem; font-weight: 700;
    text-transform: uppercase;
}
.track-type.audio { background: rgba(6,182,212,.2); color: var(--clr-accent); }
.track-type.video { background: rgba(124,58,237,.2); color: var(--clr-primary); }
.invite-link-box {
    display: flex; gap: .7rem; align-items: center; flex-wrap: wrap;
    background: var(--clr-surface2); border-radius: var(--radius); padding: .8rem 1rem;
    margin: .8rem 0;
}
.invite-link-box code { flex: 1; font-family: var(--font-mono); font-size: .85rem; word-break: break-all; }

/* ── Modal ────────────────────────────────────────────────────────── */
#modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,.7);
    display: flex; align-items: center; justify-content: center;
    z-index: 1000; padding: 1rem;
}
#modal-overlay.hidden { display: none; }
#modal-box {
    background: var(--clr-surface); border: 1px solid var(--clr-border2);
    border-radius: var(--radius-xl); padding: 2rem;
    width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto;
}
.modal-footer { display: flex; gap: .8rem; justify-content: flex-end; margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--clr-border); }

/* ================================================================
   STUDIO (sala de grabación)
   ================================================================ */
.studio-page { display: flex; flex-direction: column; height: 100vh; background: var(--clr-bg); overflow: hidden; }

/* ── Header ──────────────────────────────────────────────────────── */
.studio-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: .8rem 1.5rem; background: var(--clr-surface);
    border-bottom: 1px solid var(--clr-border); flex-shrink: 0; gap: 1rem;
}
.studio-header .logo { font-size: 1.1rem; }
#session-title { font-size: .95rem; font-weight: 600; color: var(--clr-text-2); flex: 1; text-align: center; }
.header-right { display: flex; align-items: center; gap: .8rem; }
.participant-pill {
    display: flex; align-items: center; gap: .4rem;
    background: var(--clr-surface2); border: 1px solid var(--clr-border);
    border-radius: 100px; padding: .35rem .8rem; font-size: .8rem; color: var(--clr-text-2);
}
#participant-count { font-weight: 700; color: var(--clr-text); }

/* ── Área de vídeo ───────────────────────────────────────────────── */
.studio-content { flex: 1; overflow: hidden; position: relative; }
#video-grid {
    width: 100%; height: 100%;
    display: grid; gap: .5rem; padding: .75rem;
    align-items: center; justify-items: center;
}
/* Layout dinámico por número de tiles */
#video-grid[data-count="1"] { grid-template-columns: 1fr; }
#video-grid[data-count="2"] { grid-template-columns: repeat(2, 1fr); }
#video-grid[data-count="3"] { grid-template-columns: repeat(3, 1fr); }
#video-grid[data-count="4"] { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(2, 1fr); }
#video-grid[data-count="5"],
#video-grid[data-count="6"] { grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(2, 1fr); }

.video-tile {
    position: relative; width: 100%; height: 100%;
    background: var(--clr-surface); border-radius: var(--radius-lg);
    overflow: hidden; border: 1.5px solid var(--clr-border);
}
.video-tile.local { border-color: var(--clr-primary); }
.video-wrap { width: 100%; height: 100%; }
.video-wrap video { width: 100%; height: 100%; object-fit: cover; }
.participant-name {
    position: absolute; bottom: .6rem; left: .7rem;
    background: rgba(0,0,0,.65); color: #fff;
    padding: .25rem .6rem; border-radius: 6px; font-size: .8rem;
    backdrop-filter: blur(4px);
}
.tile-indicators {
    position: absolute; top: .6rem; right: .6rem;
    display: flex; gap: .3rem;
}
.video-tile.needs-play::after {
    content: '▶ Toca para activar';
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0,0,0,.65); color: #fff;
    padding: .4rem .9rem; border-radius: 8px;
    font-size: .8rem; pointer-events: none;
    backdrop-filter: blur(4px);
}

/* ── Barra de controles ──────────────────────────────────────────── */
.studio-controls {
    flex-shrink: 0; padding: 1rem 1.5rem;
    background: var(--clr-surface); border-top: 1px solid var(--clr-border);
    display: flex; align-items: center; justify-content: center; gap: .8rem; flex-wrap: wrap;
}
.ctrl-btn {
    display: flex; flex-direction: column; align-items: center; gap: .25rem;
    background: var(--clr-surface2); border: 1.5px solid var(--clr-border);
    border-radius: var(--radius-lg); padding: .7rem 1.2rem; min-width: 72px;
    color: var(--clr-text-2); transition: background .15s, border-color .15s, color .15s;
}
.ctrl-btn:hover { background: var(--clr-border); color: var(--clr-text); }
.ctrl-btn.active { background: rgba(239,68,68,.15); border-color: var(--clr-danger); color: var(--clr-danger); }
.ctrl-btn.recording { background: rgba(239,68,68,.2); border-color: var(--clr-recording); color: var(--clr-recording); animation: pulse-border 1.5s ease-in-out infinite; }
.ctrl-btn .icon  { font-size: 1.4rem; line-height: 1; }
.ctrl-btn .label { font-size: .7rem; font-weight: 600; }
.ctrl-btn-danger { background: rgba(239,68,68,.1); border-color: rgba(239,68,68,.4); color: var(--clr-danger); }
.ctrl-btn-danger:hover { background: var(--clr-danger); color: #fff; }
.ctrl-btn-primary { background: rgba(124,58,237,.1); border-color: rgba(124,58,237,.4); color: var(--clr-primary); }
.ctrl-btn-primary:hover { background: var(--clr-primary); color: #fff; }

@keyframes pulse-border {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239,68,68,.4); }
    50%       { box-shadow: 0 0 0 6px rgba(239,68,68,0); }
}

/* ── Indicador de grabación ──────────────────────────────────────── */
#recording-indicator {
    position: absolute; top: 1rem; left: 50%; transform: translateX(-50%);
    display: flex; align-items: center; gap: .5rem;
    background: rgba(239,68,68,.15); border: 1px solid rgba(239,68,68,.4);
    border-radius: 100px; padding: .35rem .9rem; font-size: .82rem; font-weight: 600;
    color: var(--clr-recording); z-index: 10;
}
.rec-dot {
    width: .55rem; height: .55rem; border-radius: 50%; background: var(--clr-recording);
    animation: blink 1s step-start infinite;
}
@keyframes blink { 50% { opacity: 0; } }
#recording-timer { font-family: var(--font-mono); letter-spacing: .05em; }

/* ── Settings overlay ────────────────────────────────────────────── */
#settings-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,.7);
    display: flex; align-items: center; justify-content: center;
    z-index: 600; padding: 1rem;
}
#settings-overlay.hidden { display: none; }
#settings-modal {
    background: var(--clr-surface); border: 1px solid var(--clr-border2);
    border-radius: var(--radius-xl); padding: 1.8rem;
    width: 100%; max-width: 440px;
}
#settings-modal h3 { margin-bottom: 1.2rem; }
#settings-modal select {
    width: 100%; background: var(--clr-surface2);
    border: 1.5px solid var(--clr-border); border-radius: var(--radius);
    color: var(--clr-text); padding: .6rem .9rem; font: inherit;
    appearance: none; cursor: pointer;
}
#settings-modal select:focus { outline: none; border-color: var(--clr-primary); }
#cam-preview {
    width: 100%; max-height: 160px; object-fit: cover;
    border-radius: var(--radius); background: var(--clr-bg);
    margin-top: .5rem; margin-bottom: 1rem;
    display: block;
}
.settings-footer {
    display: flex; gap: .8rem; justify-content: flex-end;
    padding-top: 1rem; border-top: 1px solid var(--clr-border);
}

/* ── Join screen ─────────────────────────────────────────────────── */
#join-screen {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: 1.5rem;
}
.join-card {
    background: var(--clr-surface); border: 1px solid var(--clr-border);
    border-radius: var(--radius-xl); padding: 2.5rem; width: 100%; max-width: 420px;
    text-align: center;
}
.join-card .logo { font-size: 2rem; margin-bottom: 1.5rem; display: block; }
.join-card h2 { margin-bottom: .5rem; }
.join-card p { color: var(--clr-text-2); margin-bottom: 1.8rem; font-size: .95rem; }
#join-name-input { text-align: center; font-size: 1.05rem; margin-bottom: 1rem; }
#join-btn { width: 100%; padding: .85rem; font-size: 1rem; justify-content: center; }

/* ── Upload overlay ──────────────────────────────────────────────── */
#upload-overlay {
    position: fixed; inset: 0; background: rgba(13,13,18,.85);
    display: flex; align-items: center; justify-content: center;
    z-index: 500; flex-direction: column; gap: 1.2rem; padding: 2rem; text-align: center;
}
.upload-card { background: var(--clr-surface); border: 1px solid var(--clr-border); border-radius: var(--radius-xl); padding: 2.5rem 3rem; max-width: 440px; width: 100%; }
.upload-card h3 { margin-bottom: .4rem; }
.upload-card p  { color: var(--clr-text-2); font-size: .9rem; margin-bottom: 1.5rem; }
.progress-bar-wrap { background: var(--clr-surface2); border-radius: 100px; height: .5rem; overflow: hidden; margin-bottom: .5rem; }
#upload-bar { height: 100%; background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent)); border-radius: 100px; transition: width .3s; }
#upload-percent { font-size: .85rem; color: var(--clr-text-2); }

/* ── Error / Ended screens ───────────────────────────────────────── */
.center-screen {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: 2rem; text-align: center; flex-direction: column; gap: 1rem;
}
.center-screen .icon-big { font-size: 4rem; margin-bottom: .5rem; }
.center-screen p { color: var(--clr-text-2); max-width: 420px; }

/* ================================================================
   Responsive
   ================================================================ */
@media (max-width: 768px) {
    .dashboard-layout { flex-direction: column; }
    .sidebar { width: 100%; flex-direction: row; flex-wrap: wrap; padding: .8rem; }
    .sidebar .logo { width: 100%; }
    .dashboard-main { padding: 1rem; }
    .studio-controls { gap: .4rem; padding: .7rem; }
    .ctrl-btn { min-width: 58px; padding: .6rem .8rem; }
    .ctrl-btn .label { font-size: .65rem; }
}
@media (max-width: 480px) {
    #video-grid[data-count="3"],
    #video-grid[data-count="4"],
    #video-grid[data-count="5"],
    #video-grid[data-count="6"] { grid-template-columns: repeat(2, 1fr); }
}