/* ============================================================
   WEBSOCCER — INTRO / LANDING  v2
   Bild im Vordergrund, zentriertes Glasmorphism-Panel,
   echte DB-Statistiken, kein Duplikat Login/Register.
   ============================================================ */

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

:root {
    --ic:     #22e6ff;
    --ic2:    #28f0c7;
    --ic3:    #a78bfa;
    --gold:   #f0c044;
    --bg:     #020c14;
    --card:   rgba(3, 12, 22, 0.72);
    --border: rgba(34, 230, 255, 0.2);
    --hot:    rgba(34, 230, 255, 0.6);
    --text:   #eaf5ff;
    --muted:  rgba(180, 215, 235, 0.72);
    --faint:  rgba(140, 185, 210, 0.45);
    --red:    #f05070;
    --input:  rgba(1, 10, 20, 0.7);
}

html, body {
    width: 100%;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    overflow-x: hidden;
}

/* ===================== FULLSCREEN STAGE ===================== */
.intro-stage {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Background — image front and center */
.intro-stage__bg {
    position: fixed;
    inset: 0;
    background-image: url('../images/backgrounds/intro-bg.jpg');
    background-size: cover;
    background-position: center 28%;
    z-index: 0;
}

/* Light overlay — just enough to read text */
.intro-stage__vignette {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 90% 80% at 50% 50%, rgba(2, 12, 20, 0.18) 0%, rgba(2, 12, 20, 0.55) 100%),
        linear-gradient(to bottom,
            rgba(2, 12, 20, 0.55) 0%,
            rgba(2, 12, 20, 0.05) 30%,
            rgba(2, 12, 20, 0.05) 68%,
            rgba(2, 12, 20, 0.82) 100%);
    z-index: 1;
}

/* Scan-line texture — very subtle */
.intro-stage__scan {
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        to bottom,
        transparent,
        transparent 3px,
        rgba(0,0,0,0.07) 3px,
        rgba(0,0,0,0.07) 4px
    );
    z-index: 2;
    pointer-events: none;
}

/* ===================== TOP BAR ===================== */
.intro-topbar {
    position: relative;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 40px;
}

.intro-topbar__brand {
    display: flex;
    align-items: center;
    gap: 11px;
    text-decoration: none;
}
.intro-topbar__logo {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    filter: drop-shadow(0 0 10px rgba(34,230,255,0.55));
}
.intro-topbar__name {
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: var(--text);
    text-shadow: 0 0 20px rgba(34,230,255,0.35);
}
.intro-topbar__wordmark {
    height: 168px;
    width: auto;
    display: block;
    filter: drop-shadow(0 0 12px rgba(34,230,255,0.45));
    transition: filter 0.18s;
}
.intro-topbar__brand:hover .intro-topbar__wordmark {
    filter: drop-shadow(0 0 20px rgba(34,230,255,0.75));
}

/* ===================== PARTNER CORNER ===================== */
.intro-partner {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 5px;
    text-decoration: none;
    padding: 8px 14px;
    border: 1px solid rgba(34,230,255,0.13);
    border-radius: 10px;
    background: rgba(2, 10, 20, 0.42);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: border-color 0.18s, background 0.18s, box-shadow 0.18s;
}
.intro-partner:hover {
    border-color: rgba(34,230,255,0.38);
    background: rgba(2, 10, 20, 0.65);
    box-shadow: 0 0 20px rgba(34,230,255,0.12);
}
.intro-partner__label {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--faint);
}
.intro-partner__logo {
    height: 18px;
    width: auto;
    opacity: 0.80;
    display: block;
    transition: opacity 0.18s;
}
.intro-partner:hover .intro-partner__logo {
    opacity: 1;
}

/* ===================== MAIN CONTENT ===================== */
.intro-main {
    position: relative;
    z-index: 10;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 24px 40px;
    gap: 0;
}

/* ---- wordmark above panel ---- */
.intro-wordmark {
    text-align: center;
    margin-bottom: 28px;
}
.intro-wordmark__title {
    font-size: 52px;
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1;
    color: var(--text);
    text-shadow:
        0 0 40px rgba(34,230,255,0.4),
        0 2px 12px rgba(0,0,0,0.8);
}
.intro-wordmark__title em {
    font-style: normal;
    color: var(--ic);
    text-shadow:
        0 0 30px rgba(34,230,255,0.8),
        0 0 60px rgba(34,230,255,0.4);
}
.intro-wordmark__sub {
    font-size: 15px;
    color: var(--muted);
    margin-top: 8px;
    letter-spacing: 0.01em;
    text-shadow: 0 1px 8px rgba(0,0,0,0.7);
}

/* ---- glass panel ---- */
.intro-panel {
    width: 100%;
    max-width: 400px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    backdrop-filter: blur(28px) saturate(1.4);
    -webkit-backdrop-filter: blur(28px) saturate(1.4);
    box-shadow:
        0 0 0 1px rgba(34,230,255,0.07),
        0 0 50px rgba(34,230,255,0.1),
        0 32px 80px rgba(0,0,0,0.6),
        inset 0 1px 0 rgba(255,255,255,0.08);
    overflow: hidden;
}

/* top neon line */
.intro-panel::before {
    content: "";
    display: block;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, var(--ic) 40%, var(--ic2) 60%, transparent 100%);
    opacity: 0.85;
}

/* ---- tabs ---- */
.intro-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid rgba(34,230,255,0.12);
}
.intro-tab {
    appearance: none;
    background: none;
    border: none;
    cursor: pointer;
    font: inherit;
    font-size: 13.5px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--faint);
    padding: 14px 0;
    text-align: center;
    transition: color 0.15s;
    position: relative;
}
.intro-tab::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 20%;
    right: 20%;
    height: 2px;
    background: var(--ic);
    opacity: 0;
    box-shadow: 0 0 8px var(--ic);
    transition: opacity 0.15s;
}
.intro-tab.is-active {
    color: var(--text);
}
.intro-tab.is-active::after {
    opacity: 1;
}

/* ---- form body ---- */
.intro-body {
    padding: 28px 28px 24px;
}

.intro-alert {
    background: rgba(240,80,112,0.12);
    border: 1px solid rgba(240,80,112,0.32);
    border-radius: 7px;
    color: var(--red);
    font-size: 13px;
    padding: 9px 12px;
    margin-bottom: 18px;
}

.intro-form {
    display: flex;
    flex-direction: column;
    gap: 13px;
}
.intro-field {
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.intro-field label {
    font-size: 11px;
    font-weight: 700;
    color: var(--faint);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.intro-field input {
    background: var(--input);
    border: 1px solid rgba(34,230,255,0.16);
    border-radius: 9px;
    color: var(--text);
    font-size: 14px;
    padding: 11px 14px;
    outline: none;
    width: 100%;
    font-family: inherit;
    transition: border-color 0.14s, box-shadow 0.14s;
}
.intro-field input:focus {
    border-color: var(--hot);
    box-shadow: 0 0 0 2px rgba(34,230,255,0.15), 0 0 14px rgba(34,230,255,0.18);
}
.intro-field input::placeholder { color: var(--faint); }
.intro-field-error {
    font-size: 12px;
    color: var(--red);
}

.intro-submit {
    background: var(--ic);
    border: none;
    border-radius: 10px;
    color: #020c14;
    cursor: pointer;
    font: inherit;
    font-size: 15px;
    font-weight: 800;
    padding: 13px;
    margin-top: 4px;
    width: 100%;
    box-shadow: 0 0 24px rgba(34,230,255,0.38);
    transition: filter 0.14s, box-shadow 0.14s, transform 0.12s;
}
.intro-submit:hover {
    filter: brightness(1.1);
    box-shadow: 0 0 38px rgba(34,230,255,0.65);
    transform: translateY(-1px);
}

/* ===================== STATS BAR ===================== */
.intro-stats {
    position: relative;
    z-index: 10;
    width: min(900px, 92vw);
    margin: 28px auto 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.intro-stat {
    padding: 16px 18px;
    background: rgba(2, 10, 20, 0.55);
    border: 1px solid rgba(34,230,255,0.15);
    border-radius: 12px;
    backdrop-filter: blur(16px);
    position: relative;
    overflow: hidden;
    text-align: center;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.intro-stat:hover {
    border-color: rgba(34,230,255,0.4);
    box-shadow: 0 0 18px rgba(34,230,255,0.15);
}
.intro-stat::before {
    content: "";
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 2px;
    background: var(--ic);
    box-shadow: 0 0 8px var(--ic);
    opacity: 0.7;
}
.intro-stat:nth-child(2)::before { background: var(--ic2); box-shadow: 0 0 8px var(--ic2); }
.intro-stat:nth-child(3)::before { background: var(--ic3); box-shadow: 0 0 8px var(--ic3); }
.intro-stat:nth-child(4)::before { background: var(--gold); box-shadow: 0 0 8px var(--gold); }

.intro-stat__val {
    font-size: 28px;
    font-weight: 900;
    color: var(--text);
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    margin-bottom: 4px;
    text-shadow: 0 0 16px rgba(34,230,255,0.3);
}
.intro-stat__label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--muted);
}

/* ===================== BOTTOM SPACER ===================== */
.intro-bottom {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 20px 0 28px;
    font-size: 12px;
    color: var(--faint);
}
.intro-bottom a { color: var(--ic); text-decoration: none; }
.intro-bottom a:hover { text-decoration: underline; }