:root {
    --bg0: #f4f7fb;
    --bg1: #eef3f9;
    --ink: #1e293b;
    --muted: #64748b;
    --line: rgba(15, 23, 42, 0.1);
    --accent: #0d9488;
    --accent-soft: #5eead4;
    --accent2: #6366f1;
    --glow: rgba(13, 148, 136, 0.22);
    --card: rgba(255, 255, 255, 0.92);
    --shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 20px 50px -12px rgba(15, 23, 42, 0.1);
}

* { box-sizing: border-box; }

html, body { height: 100%; margin: 0; }

body {
    font-family: Inter, system-ui, -apple-system, sans-serif;
    color: var(--ink);
    background: var(--bg0);
    min-height: 100vh;
    overflow-x: hidden;
}

.bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(1000px 520px at 12% 8%, rgba(13, 148, 136, 0.09), transparent 58%),
        radial-gradient(800px 480px at 88% 18%, rgba(99, 102, 241, 0.08), transparent 52%),
        radial-gradient(600px 360px at 50% 95%, rgba(94, 234, 212, 0.12), transparent 48%),
        linear-gradient(165deg, var(--bg0) 0%, #fafcfd 45%, var(--bg1) 100%);
}

.grid-noise {
    position: fixed;
    inset: 0;
    opacity: 0.025;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: clamp(1.5rem, 4vw, 3rem);
}

.card {
    width: min(680px, 100%);
    padding: clamp(1.75rem, 4vw, 2.5rem);
    border-radius: 22px;
    border: 1px solid var(--line);
    background: var(--card);
    backdrop-filter: blur(12px);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.85) inset, var(--shadow);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 1.5rem;
}

.brand img {
    height: 36px;
    width: auto;
    display: block;
}

.brand span {
    font-family: Sora, Inter, sans-serif;
    font-weight: 600;
    letter-spacing: -0.02em;
    font-size: 1.15rem;
    color: var(--ink);
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    background: rgba(13, 148, 136, 0.08);
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    margin-bottom: 1rem;
}

.pulse-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 0 var(--glow);
    animation: pulse 2s ease-out infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 var(--glow); opacity: 1; }
    70% { box-shadow: 0 0 0 10px transparent; opacity: 0.9; }
    100% { box-shadow: 0 0 0 0 transparent; opacity: 1; }
}

h1 {
    font-family: Sora, Inter, sans-serif;
    font-weight: 700;
    font-size: clamp(1.65rem, 4.5vw, 2.15rem);
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin: 0 0 1rem;
    color: var(--ink);
}

.gradient-text {
    background: linear-gradient(105deg, #0f766e 0%, var(--accent) 38%, var(--accent2) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.lead {
    margin: 0 0 1.75rem;
    font-size: 1.05rem;
    line-height: 1.65;
    color: var(--muted);
}

.hint {
    font-size: 0.9rem;
    color: var(--muted);
    margin: 0 0 1.25rem;
    padding: 0.85rem 1rem;
    background: rgba(13, 148, 136, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(13, 148, 136, 0.12);
}

form {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

@media (min-width: 480px) {
    form.row { flex-direction: row; align-items: stretch; }
}

label.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

input[type="email"] {
    flex: 1;
    min-width: 0;
    padding: 0.85rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="email"]::placeholder {
    color: #94a3b8;
}

input[type="email"]:focus {
    border-color: rgba(13, 148, 136, 0.45);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.12);
}

button[type="submit"] {
    padding: 0.85rem 1.25rem;
    border-radius: 12px;
    border: none;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    color: #fff;
    background: linear-gradient(135deg, #0f766e, var(--accent));
    box-shadow: 0 2px 8px rgba(13, 148, 136, 0.25);
    transition: transform 0.15s, filter 0.15s, box-shadow 0.15s;
    white-space: nowrap;
}

button[type="submit"]:hover {
    filter: brightness(1.04);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(13, 148, 136, 0.3);
}

button[type="submit"]:active {
    transform: translateY(0);
}

.msg {
    margin-top: 0.75rem;
    font-size: 0.9rem;
}

.msg.ok { color: #15803d; }
.msg.err { color: #c2410c; }

.bar {
    margin-top: 1.75rem;
    height: 3px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    overflow: hidden;
}

.bar > span {
    display: block;
    height: 100%;
    width: 38%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--accent2), var(--accent-soft));
    animation: sweep 2.8s ease-in-out infinite;
}

@keyframes sweep {
    0% { transform: translateX(-100%); width: 32%; }
    50% { transform: translateX(180%); width: 48%; }
    100% { transform: translateX(420%); width: 32%; }
}

footer.note {
    margin-top: 2rem;
    font-size: 0.8rem;
    color: #94a3b8;
    text-align: center;
}