/* =====================================================================
   Trainingstracker – Stylesheet
   ---------------------------------------------------------------------
   Design-Idee: helles, frisches, motivierendes "In-Bewegung"-Gefühl.
   - Grundfarbe: warmes, leicht grünliches Off-White (kein reines Weiß)
   - Aktionsfarbe: frisches Minz-Türkis (Fortschritt, Bestätigung)
   - Intensitätsfarbe: energiegeladenes Korallrot (PRs, laufender Timer)
   - Tinte statt Schwarz für Text (wärmer, weniger hart)
   Layout bewusst großzügig & großschriftig, damit alles auch vom Sofa
   aus auf dem Fernseher lesbar ist.
   ===================================================================== */

:root {
    --color-bg: #F6F9F4;
    --color-surface: #FFFFFF;
    --color-surface-alt: #EEF4EA;
    --color-ink: #172218;
    --color-ink-soft: #56635A;
    --color-border: #DEE7D9;

    --color-primary: #14B891;
    --color-primary-dark: #0D8F70;
    --color-primary-soft: #DFF6EF;

    --color-accent: #FF5A36;
    --color-accent-soft: #FFE6DE;

    --radius-s: 10px;
    --radius-m: 16px;
    --radius-l: 24px;

    --shadow-soft: 0 2px 10px rgba(23, 34, 24, 0.06);
    --shadow-raised: 0 8px 24px rgba(23, 34, 24, 0.10);

    --focus-ring: 0 0 0 4px rgba(20, 184, 145, 0.35);

    --font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --max-width: 1080px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--color-bg);
    color: var(--color-ink);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.5;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.15;
    margin: 0 0 0.35em 0;
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(1.8rem, 3vw + 1rem, 2.6rem); }
h2 { font-size: clamp(1.4rem, 2vw + 1rem, 1.9rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em 0; max-width: 68ch; }

a { color: var(--color-primary-dark); }

img, video { max-width: 100%; display: block; }

/* --- Fokus-Sichtbarkeit: essenziell für Fernbedienungs-Navigation --- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
    border-radius: var(--radius-s);
}

/* --- Layout-Grundgerüst ------------------------------------------------ */
.page {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 18px 20px 60px;
}

.topbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 20;
}

.topbar-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    position: relative;
}

.brand {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--color-ink);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.brand-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-primary);
    display: inline-block;
}

/* Navigation ist immer ein Burger-Menü (auflösungsunabhängig): die Links
   fahren als vollhohes Panel von rechts ein, sichtbar nur mit .open. */
nav.main-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100%;
    width: 300px;
    max-width: 85vw;
    background: var(--color-surface);
    border-left: 1px solid var(--color-border);
    box-shadow: var(--shadow-raised);
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 56px 16px 24px;
    z-index: 40;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.22s ease;
}
nav.main-nav.open { transform: translateX(0); }

.nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 35;
}

.nav-close {
    position: absolute;
    top: 10px;
    right: 12px;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    font-size: 1.8rem;
    line-height: 1;
    color: var(--color-ink);
    cursor: pointer;
    border-radius: var(--radius-s);
}
.nav-close:hover { background: var(--color-surface-alt); }

/* Rubriken: Überschrift + darunter die Unterpunkte. */
.nav-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.nav-group + .nav-group,
.nav-dashboard + .nav-group {
    border-top: 1px solid var(--color-border);
    margin-top: 8px;
    padding-top: 8px;
}
.nav-group-title {
    font-family: var(--font-display);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-ink-soft);
    padding: 4px 14px;
}

nav.main-nav a {
    text-decoration: none;
    color: var(--color-ink-soft);
    padding: 12px 14px;
    border-radius: var(--radius-s);
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
}
nav.main-nav a.nav-dashboard {
    color: var(--color-ink);
    font-weight: 600;
}

nav.main-nav a:hover,
nav.main-nav a.active {
    background: var(--color-surface-alt);
    color: var(--color-ink);
}

/* Burger-Button: immer sichtbar – die Navigation ist auflösungsunabhängig
   ein Menü. */
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: var(--radius-s);
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-ink);
    border-radius: 2px;
}
.nav-toggle:hover { background: var(--color-surface-alt); }

.btn.disabled { opacity: 0.35; pointer-events: none; }

.pagination {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 18px;
}

/* --- Karten -------------------------------------------------------------- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-m);
    padding: 16px 18px;
}

.card + .card { margin-top: 12px; }

.grid {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

/* --- Buttons -------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 22px;
    border-radius: var(--radius-s);
    border: none;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.08s ease;
}
.btn:active { transform: scale(0.98); }

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-secondary { background: var(--color-surface-alt); color: var(--color-ink); }
.btn-secondary:hover { background: var(--color-border); }

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

.btn-ghost { background: transparent; color: var(--color-ink-soft); border: 1px solid var(--color-border); }

.btn-large { padding: 20px 32px; font-size: 1.25rem; border-radius: var(--radius-m); }

.btn-block { width: 100%; }

/* --- Formulare -------------------------------------------------------------- */
label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.92rem;
}

input[type=text], input[type=number], input[type=password],
input[type=file], select, textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-s);
    font-family: var(--font-body);
    font-size: 1rem;
    background: var(--color-surface);
    color: var(--color-ink);
}

textarea { min-height: 90px; resize: vertical; }

.field { margin-bottom: 14px; }

.field-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 14px;
}

/* --- Flash-Meldungen -------------------------------------------------------- */
.flash {
    padding: 14px 18px;
    border-radius: var(--radius-s);
    margin-bottom: 20px;
    font-weight: 500;
}
.flash-success { background: var(--color-primary-soft); color: var(--color-primary-dark); }
.flash-error { background: var(--color-accent-soft); color: #B8380F; }

/* --- Badges / Tags ---------------------------------------------------------- */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    background: var(--color-surface-alt);
    color: var(--color-ink-soft);
}
.badge-hold { background: var(--color-accent-soft); color: #B8380F; }
.badge-reps { background: var(--color-primary-soft); color: var(--color-primary-dark); }
.badge-side { background: #EAE6FB; color: #5B3FBF; }

/* Wiederverwendbare Zeilen-Layouts für Listen mit Aktionen rechts */
.history-row, .device-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}
.history-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.set-edit-row .set-edit-title {
    font-weight: 600;
    margin-bottom: 10px;
}

/* --- Dashboard: Streak-/Kennzahlen-Ring ------------------------------------- */
.stat-row { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 24px; }
.stat-tile {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-m);
    padding: 20px 24px;
    flex: 1 1 160px;
}
.stat-tile .value {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-primary-dark);
}
.stat-tile .label { color: var(--color-ink-soft); font-size: 0.9rem; }

/* =====================================================================
   Handy-Steuerung (train.php) – bedienungsfokussiert, Medien im Hintergrund
   ===================================================================== */
.control-screen {
    max-width: 480px;
    margin: 0 auto;
}

.control-progress-bar {
    height: 6px;
    background: var(--color-surface-alt);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 20px;
}
.control-progress-fill {
    height: 100%;
    background: var(--color-primary);
    transition: width 0.3s ease;
    width: 0%;
}

.control-header { margin-bottom: 18px; text-align: center; }
.control-header h1 { font-size: 1.7rem; }
.control-subline { color: var(--color-ink-soft); }

.control-timer {
    font-family: var(--font-display);
    font-size: 3.4rem;
    font-weight: 700;
    color: var(--color-accent);
    text-align: center;
    margin: 10px 0 18px;
    font-variant-numeric: tabular-nums;
}

.control-input-row {
    display: flex;
    gap: 12px;
    margin-bottom: 18px;
}
.control-input-row .field { flex: 1; margin-bottom: 0; }
.control-input-row input { text-align: center; font-size: 1.3rem; padding: 14px; }

.control-actions { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }

/* Übungsmedien sind auf dem Handy bewusst NICHT prominent – nur ein
   ausklappbarer Hinweis statt großflächiger Bilder/Videos. */
.media-collapse {
    margin-top: 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-s);
    padding: 10px 14px;
}
.media-collapse summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--color-primary-dark);
    font-size: 0.92rem;
}
.media-collapse-box {
    margin-top: 10px;
    max-height: 220px;
    overflow: hidden;
    border-radius: var(--radius-s);
}
.media-collapse-box img, .media-collapse-box video {
    width: 100%; max-height: 220px; object-fit: contain; background: var(--color-ink);
    border-radius: var(--radius-s);
}

/* Große Medien-Anzeige unten auf dem Handy, wenn KEIN Fernseher gerade
   aktiv mitschaut – dann ist das Handy die einzige Anzeige. */
.media-expanded {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.media-expanded img, .media-expanded video {
    width: 100%;
    max-height: 320px;
    object-fit: contain;
    background: var(--color-ink);
    border-radius: var(--radius-m);
}

/* 5-stufige Anstrengungs-Bewertung (nur nach dem letzten Satz einer Übung) */
.rating-block { margin: 16px 0; text-align: center; }
.rating-question { font-weight: 600; margin-bottom: 10px; }
.rating-scale {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 16px;
}
.rating-btn {
    flex: 1 1 18%;
    min-width: 64px;
    padding: 12px 6px;
    border-radius: var(--radius-s);
    border: 1.5px solid var(--color-border);
    background: var(--color-surface);
    font-weight: 600;
    font-size: 0.82rem;
    cursor: pointer;
}
.rating-btn.selected {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

/* =====================================================================
   TV-Anzeige (train_tv.php) – reines Anzeigemedium, KEIN Scrollen,
   immer alles auf einen Blick sichtbar. Zweispaltig: 1/3 Timer &
   Fortschritt, 2/3 Übungsmedien.
   ===================================================================== */
.tv-body {
    margin: 0;
    height: 100vh;
    overflow: hidden;
    background: var(--color-ink);
}
.tv-screen {
    display: grid;
    grid-template-columns: 1fr 2fr;
    height: 100vh;
    width: 100vw;
}
.tv-col-left {
    background: var(--color-bg);
    padding: clamp(20px, 3vw, 48px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.tv-col-right {
    background: var(--color-ink);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.tv-col-right img, .tv-col-right video {
    width: 100%; height: 100%; object-fit: contain;
}
/* Pausenbilder füllen den gesamten Anzeigebereich (dürfen beschnitten werden) */
.tv-col-right img.tv-media-fill, .tv-col-right video.tv-media-fill {
    object-fit: cover;
}
.tv-col-right .no-media {
    color: #8FA08F;
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    text-align: center;
    padding: 20px;
}

.tv-workout-name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    color: var(--color-ink-soft);
}
.tv-progress-bar {
    height: 10px;
    background: var(--color-surface-alt);
    border-radius: 999px;
    overflow: hidden;
    margin: 14px 0 6px;
    flex-shrink: 0;
}
.tv-progress-fill {
    height: 100%;
    background: var(--color-primary);
    transition: width 0.3s ease;
}
.tv-progress-label { color: var(--color-ink-soft); font-size: clamp(0.9rem, 1.2vw, 1.1rem); margin-bottom: 10px; }

.tv-center {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
}

.tv-exercise-name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.8rem, 4vw, 3.2rem);
    line-height: 1.1;
    margin-bottom: 10px;
}
.tv-label { font-size: clamp(1.1rem, 2vw, 1.6rem); color: var(--color-ink-soft); }
.tv-next { margin-top: 14px; font-size: clamp(1rem, 1.6vw, 1.3rem); }
.tv-timer {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(3.5rem, 9vw, 7rem);
    color: var(--color-accent);
    font-variant-numeric: tabular-nums;
    line-height: 1;
    margin-bottom: 10px;
}
.tv-eta {
    color: var(--color-ink-soft);
    font-size: clamp(0.95rem, 1.3vw, 1.15rem);
    margin-top: auto;
    padding-top: 14px;
    flex-shrink: 0;
}
.tv-idle, .tv-finished {
    text-align: center;
    margin: auto;
}
.tv-idle h1, .tv-finished h1 { font-size: clamp(2rem, 4vw, 3rem); }

.sound-unlock-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 50;
    background: var(--color-surface);
    color: var(--color-ink);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 10px 18px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-raised);
    opacity: 0.85;
}
.sound-unlock-btn.hidden { display: none; }

@media (max-width: 900px) {
    .tv-screen { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
}

/* =====================================================================
   Pairing-Seite (Fernseher zeigt Code)
   ===================================================================== */
.pairing-code {
    font-family: var(--font-display);
    font-size: clamp(3rem, 12vw, 7rem);
    letter-spacing: 0.15em;
    font-weight: 700;
    color: var(--color-primary-dark);
    background: var(--color-primary-soft);
    border-radius: var(--radius-l);
    padding: 28px 20px;
    margin: 24px 0;
}

/* =====================================================================
   Responsive
   ===================================================================== */
@media (max-width: 640px) {
    .page { padding: 16px 14px 60px; }
}

/* Große Bildschirme (TV) automatisch großzügiger */
@media (min-width: 1400px) {
    html, body { font-size: 19px; }
}

/* Bewegungsreduktion respektieren */
@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
}