/* Leinenführigkeits-Challenge – Stylesheet
   Palette abgeleitet aus dem Dünen-/Küstenmotiv der Challenge:
   warmer Sandton, gedämpftes Moosgrün als Akzent, weiches Braun. */

:root {
    --sand:        #f6f1e7;
    --sand-deep:   #ece3d2;
    --ink:         #2b2620;
    --ink-soft:    #6d6152;
    --moss:        #55703a;
    --moss-dark:   #3f5529;
    --brown:       #8a6d4b;
    --card:        #ffffff;
    --line:        #e2d8c4;
    --danger:      #9a3b2f;
    --radius:      14px;
    --shadow:      0 6px 22px rgba(43, 38, 32, .10);
    --font:        system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font);
    color: var(--ink);
    background: var(--sand);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    border: 0;
    border-radius: 10px;
    background: var(--moss);
    color: #fff;
    font: inherit;
    font-weight: 600;
    padding: .7rem 1.4rem;
    cursor: pointer;
    text-decoration: none;
    transition: background .15s ease, transform .05s ease;
}
.btn:hover  { background: var(--moss-dark); }
.btn:active { transform: translateY(1px); }

.btn--ghost {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line);
    padding: .5rem 1rem;
}
.btn--ghost:hover { background: var(--sand-deep); }

/* ---------- Login ---------- */
.page-login {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}
.card {
    width: 100%;
    max-width: 400px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem 1.8rem;
    text-align: center;
}
.card__logo {
    width: 96px;
    height: 96px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: .8rem;
}
.card__title {
    margin: 0 0 .3rem;
    font-size: 1.35rem;
    letter-spacing: -.01em;
}
.card__lead {
    margin: 0 0 1.4rem;
    color: var(--ink-soft);
    font-size: .95rem;
}

.form   { text-align: left; }
.field  { display: block; margin-bottom: 1rem; }
.field__label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: .35rem;
    color: var(--ink-soft);
}
.field input {
    width: 100%;
    font: inherit;
    padding: .7rem .8rem;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    color: var(--ink);
}
.field input:focus {
    outline: 2px solid var(--moss);
    outline-offset: 1px;
    border-color: var(--moss);
}
.form .btn { width: 100%; margin-top: .4rem; }

.alert {
    background: #fbeae7;
    border: 1px solid #efc9c2;
    color: var(--danger);
    border-radius: 10px;
    padding: .7rem .9rem;
    font-size: .9rem;
    margin: 0 0 1.2rem;
    text-align: left;
}

/* ---------- App / Topbar ---------- */
.topbar {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
    align-items: center;
    justify-content: space-between;
    padding: .9rem 1.2rem;
    background: var(--card);
    border-bottom: 1px solid var(--line);
}
.topbar__brand { display: flex; align-items: center; gap: .7rem; }
.topbar__logo  { width: 40px; height: 40px; object-fit: cover; border-radius: 8px; }
.topbar__title { font-weight: 700; letter-spacing: -.01em; }
.topbar__user  { display: flex; align-items: center; gap: .8rem; }
.topbar__name  { color: var(--ink-soft); font-size: .9rem; }

.wrap  { max-width: 1000px; margin: 0 auto; padding: 1.5rem 1.2rem 3rem; }
.intro { color: var(--ink-soft); margin: .2rem 0 1.4rem; }

/* ---------- Kachel-Grid ---------- */
.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.1rem;
}
@media (min-width: 560px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .grid { grid-template-columns: repeat(3, 1fr); } }

.tile {
    display: flex;
    flex-direction: column;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow);
    transition: transform .12s ease, box-shadow .12s ease;
}
.tile:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 26px rgba(43, 38, 32, .16);
}
.tile:focus-visible {
    outline: 3px solid var(--moss);
    outline-offset: 2px;
}

.tile__thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    background-color: var(--sand-deep);
    background-size: cover;
    background-position: center;
}
.tile__day {
    position: absolute;
    top: .6rem;
    left: .6rem;
    background: rgba(43, 38, 32, .78);
    color: #fff;
    font-weight: 700;
    font-size: .8rem;
    padding: .25rem .6rem;
    border-radius: 999px;
}
.tile__play {
    position: absolute;
    inset: 0;
    margin: auto;
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    background: rgba(85, 112, 58, .92);
    border-radius: 50%;
    box-shadow: 0 4px 14px rgba(0, 0, 0, .3);
}
.tile__play svg { width: 26px; height: 26px; fill: #fff; margin-left: 3px; }
.tile:hover .tile__play { background: var(--moss-dark); }

.tile__body  { padding: .9rem 1rem 1.1rem; }
.tile__title { margin: 0 0 .2rem; font-size: 1.05rem; }
.tile__sub   { margin: 0; color: var(--ink-soft); font-size: .9rem; }

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; }
    .tile:hover { transform: none; }
}