:root {
    --specter-bg: #000000;
    --specter-card: rgba(12, 12, 12, 0.86);
    --specter-border: rgba(255, 255, 255, 0.12);
    --specter-text: #ffffff;
    --specter-muted: #b8b8b8;
    --specter-field: #101010;
    --specter-focus: #ffffff;
    --specter-success: #d7ffe4;
    --specter-success-border: rgba(122, 255, 164, 0.35);
    --specter-error: #ffe1e1;
    --specter-error-border: rgba(255, 126, 126, 0.35);
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    background: radial-gradient(circle at top, #1a1a1a 0%, #050505 42%, #000000 100%);
    color: var(--specter-text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.5;
}

.specter-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 32px 18px;
}

.specter-card {
    width: min(100%, 560px);
    padding: clamp(28px, 5vw, 48px);
    background: var(--specter-card);
    border: 1px solid var(--specter-border);
    border-radius: 28px;
    box-shadow: 0 28px 90px rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(10px);
}

.specter-logo-wrap {
    text-align: center;
    margin-bottom: 18px;
}

.specter-logo-mark {
    display: block;
    max-width: 340px;
    width: 100%;
    height: auto;
    margin: 0 auto 12px;
}

.specter-custom-logo img {
    max-width: 320px;
    height: auto;
}

.specter-logo-text {
    margin: 0;
    font-size: clamp(28px, 5vw, 44px);
    letter-spacing: -0.04em;
}

.specter-intro {
    max-width: 460px;
    margin: 0 auto 28px;
    color: var(--specter-muted);
    text-align: center;
    font-size: 16px;
}

.specter-alert {
    padding: 12px 14px;
    border-radius: 14px;
    margin-bottom: 18px;
    font-size: 14px;
}

.specter-alert-success {
    color: var(--specter-success);
    border: 1px solid var(--specter-success-border);
    background: rgba(50, 255, 115, 0.08);
}

.specter-alert-error {
    color: var(--specter-error);
    border: 1px solid var(--specter-error-border);
    background: rgba(255, 50, 50, 0.08);
}

.specter-form {
    display: grid;
    gap: 12px;
}

.specter-form label {
    color: var(--specter-muted);
    font-size: 13px;
    font-weight: 600;
}

.specter-form input,
.specter-form textarea {
    width: 100%;
    border: 1px solid var(--specter-border);
    border-radius: 14px;
    background: var(--specter-field);
    color: var(--specter-text);
    padding: 13px 14px;
    font: inherit;
    outline: none;
    transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.specter-form input:focus,
.specter-form textarea:focus {
    border-color: var(--specter-focus);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.08);
    background: #151515;
}

.specter-form textarea {
    resize: vertical;
    min-height: 130px;
}

.specter-form button {
    margin-top: 8px;
    border: 0;
    border-radius: 999px;
    background: #ffffff;
    color: #000000;
    padding: 14px 18px;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
    transition: transform 180ms ease, opacity 180ms ease;
}

.specter-form button:hover,
.specter-form button:focus {
    transform: translateY(-1px);
    opacity: 0.9;
}

.specter-hidden-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

@media (max-width: 520px) {
    .specter-card {
        border-radius: 22px;
    }

    .specter-logo-mark {
        max-width: 280px;
    }
}