/* ═══════════════════════════════════════════
   FOCUS SECTION — tokens propios
   ═══════════════════════════════════════════ */

#focus-section {
    --f-bg:          #0d0f1a;
    --f-surface:     rgba(255, 255, 255, 0.04);
    --f-border:      rgba(255, 255, 255, 0.07);
    --f-border-mid:  rgba(255, 255, 255, 0.12);
    --f-text:        #e8eaf6;
    --f-muted:       rgba(232, 234, 246, 0.45);
    --f-accent:      #7c6fff;
    --f-accent-dim:  rgba(124, 111, 255, 0.15);
    --f-accent-mid:  rgba(124, 111, 255, 0.35);
    --f-glow:        rgba(124, 111, 255, 0.2);
    --f-ring-track:  rgba(255, 255, 255, 0.06);

    position: relative;
    min-height: 100vh;
    overflow: hidden;
    padding: 0;
    color: var(--f-text);
    background: var(--f-bg);
    width: 100%;
    height: 0;
    margin: 0;
    position: absolute;
    top: 0;
    right: 0;
    left: 20;
}

#focus-section > a {
    padding: 0px;
    position: absolute;
    top: 10px;
    left: 10px;
    width: 50px;
    height: 50px;
    border-radius: 50px;
    font-size: 20px;
    border: 2px solid var(--f-accent);
    background-color: var(--f-accent);
    color: var(--f-bg);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

#focus-section > a:hover {
    background-color: white;
    color: var(--f-accent);
    transform: scale(1.1);
    transition: all ease 0.3s;
    cursor: pointer;
}

/* ── Fondo orbs ── */
.focus-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}

.focus-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.18;
    animation: orb-drift 18s ease-in-out infinite alternate;
}

.orb-1 {
    width: 520px; height: 520px;
    background: #5c4fff;
    top: -180px; left: -120px;
    animation-duration: 20s;
}

.orb-2 {
    width: 400px; height: 400px;
    background: #2d88ff;
    bottom: -120px; right: -80px;
    animation-duration: 25s;
    animation-delay: -8s;
}

.orb-3 {
    width: 280px; height: 280px;
    background: #8b5cf6;
    top: 40%; left: 50%;
    transform: translate(-50%, -50%);
    animation-duration: 15s;
    animation-delay: -4s;
    opacity: 0.1;
}

@keyframes orb-drift {
    0%   { transform: translate(0, 0) scale(1); }
    50%  { transform: translate(40px, 30px) scale(1.08); }
    100% { transform: translate(-20px, 50px) scale(0.95); }
}

/* orb-3 tiene transform propio */
.orb-3 {
    animation-name: orb-drift-center;
}
@keyframes orb-drift-center {
    0%   { transform: translate(-50%, -50%) scale(1); }
    50%  { transform: translate(-45%, -55%) scale(1.15); }
    100% { transform: translate(-55%, -45%) scale(0.9); }
}

/* ── Layout ── */
.focus-layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 240px 1fr 240px;
    gap: 24px;
    min-height: 100vh;
    padding: 2rem;
    align-items: start;
}

/* ── Cards base ── */
.focus-subject-card,
.focus-stats-grid,
.focus-badges-wrap,
.focus-audio-card,
.focus-recent-card {
    background: var(--f-surface);
    border: 1px solid var(--f-border);
    border-radius: 16px;
    padding: 16px;
    backdrop-filter: blur(20px);
}

/* ── Sidebar ── */
.focus-sidebar {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding-top: 3.5rem;
}

/* ── Materia activa ── */
.focus-subject-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    cursor: pointer;
    position: relative;
    transition: border-color 200ms ease;
}

.focus-subject-card:hover { border-color: var(--f-border-mid); }

.focus-subject-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--f-accent);
    flex-shrink: 0;
    box-shadow: 0 0 8px var(--f-glow);
    transition: background 300ms ease;
}

.focus-subject-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.focus-subject-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--f-muted);
}

.focus-subject-name {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--f-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Select invisible sobre la card */
.focus-subject-select {
    position: absolute;
    inset: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    font-size: 14px;
}

/* ── Stats ── */
.focus-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 14px;
}

.focus-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 6px;
    border-radius: 10px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--f-border);
    text-align: center;
}

.focus-stat i {
    font-size: 14px;
    color: var(--f-accent);
    margin-bottom: 2px;
}

.focus-stat-value {
    font-size: 15px;
    font-weight: 800;
    color: var(--f-text);
    letter-spacing: -0.01em;
}

.focus-stat-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--f-muted);
}

/* ── Badges ── */
.focus-badges-wrap { padding: 14px; }

.focus-badges-title {
    display: block;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--f-muted);
    margin-bottom: 10px;
}

.focus-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.focus-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-align: center;
    flex: 1;
    min-width: 56px;
    border: 1px solid var(--f-border);
    background: rgba(255,255,255,0.03);
    color: var(--f-text);
    transition: border-color 200ms ease, background 200ms ease;
}

.focus-badge i { font-size: 16px; color: var(--f-accent); }

.focus-badge.locked {
    opacity: 0.3;
    filter: grayscale(1);
}

.focus-badge.unlocked {
    opacity: 1;
    filter: none;
    border-color: var(--f-accent-mid);
    background: var(--f-accent-dim);
}

/* ── Centro ── */
.focus-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding-top: 2rem;
}

/* ── Mode tabs ── */
.focus-mode-tabs {
    display: flex;
    gap: 4px;
    background: var(--f-surface);
    border: 1px solid var(--f-border);
    border-radius: 12px;
    padding: 4px;
    backdrop-filter: blur(20px);
}

.focus-mode-tab {
    padding: 8px 22px;
    border-radius: 9px;
    border: none;
    background: none;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--f-muted);
    cursor: pointer;
    transition: background 150ms ease, color 150ms ease;
}

.focus-mode-tab:hover { color: var(--f-text); }

.focus-mode-tab.active {
    background: var(--f-accent-dim);
    border: 1px solid var(--f-accent-mid);
    color: var(--f-accent);
}

/* ── Presets ── */
.focus-pomodoro-config,
.focus-session-btns {
    display: flex;
    gap: 8px;
}

.focus-session-config {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.focus-session-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--f-muted);
}

.focus-preset {
    padding: 7px 18px;
    border-radius: 8px;
    border: 1px solid var(--f-border);
    background: var(--f-surface);
    color: var(--f-muted);
    font-family: inherit;
    font-size: 12.5px;
    font-weight: 700;
    cursor: pointer;
    transition: background 150ms ease, border-color 150ms ease, color 150ms ease;
}

.focus-preset:hover { color: var(--f-text); border-color: var(--f-border-mid); }

.focus-preset.active {
    background: var(--f-accent-dim);
    border-color: var(--f-accent-mid);
    color: var(--f-accent);
}

/* ── Timer ring ── */
.focus-timer-wrap {
    position: relative;
    width: 280px;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.focus-ring {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.focus-ring-bg {
    fill: none;
    stroke: var(--f-ring-track);
    stroke-width: 6;
}

.focus-ring-fill {
    fill: none;
    stroke: var(--f-accent);
    stroke-width: 6;
    stroke-linecap: round;
    transition: stroke-dashoffset 1s linear, stroke 400ms ease;
    filter: drop-shadow(0 0 8px var(--f-glow));
}

.focus-timer-inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.focus-phase-label {
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--f-muted);
}

.focus-time {
    font-size: 3.8rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--f-text);
    font-variant-numeric: tabular-nums;
    line-height: 1;
}

.focus-xp-live {
    font-size: 13px;
    font-weight: 700;
    color: #ffd080;
    background: rgba(255, 185, 50, 0.12);
    border: 1px solid rgba(255, 185, 50, 0.2);
    border-radius: 999px;
    padding: 3px 12px;
    margin-top: 4px;
}

/* ── Controles ── */
.focus-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.focus-ctrl-btn {
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 150ms ease, background 150ms ease, box-shadow 150ms ease;
}

.focus-ctrl-btn.secondary {
    width: 48px;
    height: 48px;
    background: var(--f-surface);
    border: 1px solid var(--f-border);
    color: var(--f-muted);
    font-size: 15px;
}

.focus-ctrl-btn.secondary:hover {
    background: rgba(255,255,255,0.08);
    color: var(--f-text);
    transform: scale(1.07);
}

.focus-ctrl-btn.primary {
    width: 68px;
    height: 68px;
    background: var(--f-accent);
    color: #fff;
    font-size: 20px;
    box-shadow: 0 0 28px var(--f-glow);
}

.focus-ctrl-btn.primary:hover {
    transform: scale(1.08);
    box-shadow: 0 0 40px rgba(124,111,255,0.4);
}

.focus-ctrl-btn.primary:active { transform: scale(0.97); }

/* Break banner */
.focus-break-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    border-radius: 12px;
    background: rgba(61,220,151,0.1);
    border: 1px solid rgba(61,220,151,0.22);
    color: #7affc5;
    font-size: 13px;
    font-weight: 600;
}

/* ── Audio ── */
.focus-audio-card,
.focus-recent-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.focus-audio-title {
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--f-muted);
    display: flex;
    align-items: center;
    gap: 7px;
}

.focus-audio-title i { color: var(--f-accent); font-size: 12px; }

.focus-audio-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 7px;
}

.focus-audio-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    padding: 10px 6px;
    border-radius: 10px;
    border: 1px solid var(--f-border);
    background: rgba(255,255,255,0.03);
    color: var(--f-muted);
    font-family: inherit;
    font-size: 10.5px;
    font-weight: 600;
    cursor: pointer;
    transition: background 150ms ease, border-color 150ms ease, color 150ms ease;
}

.focus-audio-btn i { font-size: 15px; }

.focus-audio-btn:hover {
    background: rgba(255,255,255,0.07);
    color: var(--f-text);
}

.focus-audio-btn.active {
    background: var(--f-accent-dim);
    border-color: var(--f-accent-mid);
    color: var(--f-accent);
}

.focus-volume-row {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--f-muted);
    font-size: 12px;
}

.focus-volume-row input[type="range"] {
    flex: 1;
    accent-color: var(--f-accent);
    height: 3px;
    cursor: pointer;
}

/* ── Sesiones recientes ── */
.focus-recent-list {
    display: flex;
    flex-direction: column;
    gap: 7px;
    max-height: 200px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--f-border) transparent;
}

.focus-empty-hint {
    font-size: 12px;
    color: var(--f-muted);
    text-align: center;
    padding: 1rem 0;
    font-style: italic;
    opacity: 0.5;
}

.focus-recent-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 9px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--f-border);
}

.focus-recent-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

.focus-recent-info {
    display: flex;
    flex-direction: column;
    gap: 1px;
    flex: 1;
    min-width: 0;
}

.focus-recent-subj {
    font-size: 12px;
    font-weight: 700;
    color: var(--f-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.focus-recent-meta {
    font-size: 10.5px;
    color: var(--f-muted);
}

.focus-recent-xp {
    font-size: 10.5px;
    font-weight: 700;
    color: #ffd080;
    white-space: nowrap;
}

/* ── Mobile ── */
@media (max-width: 900px) {
    .focus-layout {
        grid-template-columns: 1fr;
        padding: 1rem;
        gap: 16px;
    }

    .focus-sidebar { padding-top: 0; }
    .focus-sidebar.right { order: 3; }

    .focus-stats-grid { grid-template-columns: repeat(4, 1fr); }

    .focus-timer-wrap { width: 230px; height: 230px; }
    .focus-time       { font-size: 3rem; }

    .focus-audio-options { grid-template-columns: repeat(3, 1fr); }
}