/* ===== Sign-in page — "Living lab notebook" (builds on home-lab.css primitives) ===== */

input[name="csrf_token"] { display: none !important; }

.login-main {
    width: 100%;
    max-width: 100%;
    padding: 0 !important;
    margin: 0 !important;
    overflow-x: clip;
}

/* Flash messages render inside the card instead. */
.login-main > .alert { display: none !important; }
.lab-login {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    min-height: calc(100vh - 64px);
    min-height: calc(100dvh - 64px);
}

/* ── Left: night-lab panel ── */
.lab-login__night {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    padding: 4rem clamp(1.5rem, 5vw, 4.5rem) 3rem;
    background:
        radial-gradient(900px 500px at 70% 25%, rgba(20, 184, 166, 0.18), transparent 60%),
        radial-gradient(600px 400px at 10% 95%, rgba(251, 191, 36, 0.08), transparent 60%),
        linear-gradient(180deg, var(--lab-ink) 0%, var(--lab-ink-2) 100%);
    color: #e6f1f5;
    overflow: hidden;
    isolation: isolate;
}

.lab-login__home {
    position: absolute;
    top: 1.4rem;
    left: clamp(1.5rem, 5vw, 4.5rem);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: rgba(226, 240, 245, 0.7);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
}

.lab-login__home:hover { color: var(--lab-glow); }

.lab-login__title {
    font-family: var(--lab-display);
    font-size: clamp(2.3rem, 4.6vw, 3.8rem);
    font-weight: 700;
    line-height: 1.04;
    letter-spacing: -0.02em;
    color: #fff;
    margin-bottom: 1.1rem;
}

.lab-login__lead {
    max-width: 30rem;
    font-size: 1.08rem;
    line-height: 1.7;
    color: rgba(226, 240, 245, 0.78);
    margin-bottom: 1.5rem;
}

.lab-login__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.lab-login__chips li {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    border: 1px solid rgba(45, 212, 191, 0.35);
    background: rgba(45, 212, 191, 0.08);
    color: #ccfbf1;
    font-size: 0.88rem;
    font-weight: 600;
    box-shadow: 0 0 18px rgba(45, 212, 191, 0.12);
}

.lab-login__chips i { color: var(--lab-glow); }

.lab-login__visual {
    display: flex;
    justify-content: center;
}

.lab-login .lab-lens { width: min(260px, 60%); }

.lab-login__foot {
    position: absolute;
    bottom: 1.25rem;
    left: clamp(1.5rem, 5vw, 4.5rem);
    margin: 0;
    font-size: 0.8rem;
    color: rgba(226, 240, 245, 0.45);
}

/* ── Right: notebook card ── */
.lab-login__panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem clamp(1rem, 4vw, 3rem);
    background-color: var(--lab-paper);
    background-image:
        linear-gradient(var(--lab-paper-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--lab-paper-line) 1px, transparent 1px);
    background-size: 28px 28px;
}

.lab-login__card {
    position: relative;
    width: 100%;
    max-width: 440px;
    padding: 2.4rem 2.1rem 1.6rem;
    border-radius: 20px;
    background: #fff;
    border: 1px solid var(--home-border);
    box-shadow: 0 30px 70px rgba(15, 23, 42, 0.12);
}

.lab-login__tape {
    position: absolute;
    top: -13px;
    left: 50%;
    width: 110px;
    height: 28px;
    transform: translateX(-50%) rotate(-3deg);
    background: rgba(45, 212, 191, 0.35);
    border-radius: 3px;
}

.lab-login__head { margin-bottom: 1.4rem; }
.lab-login__head .lab-scribble { font-size: 1.7rem; margin-bottom: 0.2rem; }

.lab-login__card-title {
    font-family: var(--lab-display);
    font-size: 1.7rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--lab-text);
    margin-bottom: 0.3rem;
}

.lab-login__subtitle {
    margin: 0;
    color: var(--lab-muted);
    font-size: 0.95rem;
}

.lab-login__alerts {
    display: grid;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.lab-login__alerts .alert { border-radius: 12px; font-size: 0.92rem; }

.lab-field { margin-bottom: 1rem; }

.lab-field__label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--lab-text);
    margin-bottom: 0.35rem;
}

.lab-field__wrap { position: relative; }

.lab-field__icon {
    position: absolute;
    left: 0.95rem;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    pointer-events: none;
}

.lab-field__input {
    width: 100%;
    padding: 0.8rem 0.95rem 0.8rem 2.6rem;
    border: 1.5px solid #dbe3e2;
    border-radius: 12px;
    background: var(--lab-paper);
    color: var(--lab-text);
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.lab-field__input:focus {
    outline: none;
    background: #fff;
    border-color: #14b8a6;
    box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.15);
}

.lab-field__input--password { padding-right: 2.9rem; }

.lab-field__toggle {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: #64748b;
}

.lab-field__toggle:hover { background: rgba(15, 118, 110, 0.08); color: var(--home-primary); }

.lab-login__submit {
    width: 100%;
    justify-content: center;
    margin-top: 0.4rem;
    border: none;
}

.lab-login__submit .btn-text { font-size: 1rem; font-weight: 700; }
.lab-login__submit.loading { opacity: 0.8; pointer-events: none; }
.lab-login__submit i { font-size: 1.3rem; }

.lab-login__divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1.25rem 0;
    color: #64748b;
    font-family: var(--lab-hand);
    font-size: 1.2rem;
}

.lab-login__divider::before,
.lab-login__divider::after {
    content: "";
    flex: 1;
    border-top: 1.5px dashed #dbe3e2;
}

.lab-login__google {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid #dbe3e2;
    border-radius: 999px;
    background: #fff;
    color: var(--lab-text);
    font-weight: 700;
    text-decoration: none;
    transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.lab-login__google:hover {
    color: var(--lab-text);
    border-color: #94a3b8;
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
}

.lab-login__google .google-icon { width: 20px; height: 20px; }

.lab-login__family {
    display: flex;
    gap: 0.8rem;
    margin-top: 1.4rem;
    padding: 0.9rem 1rem;
    border-radius: 14px;
    background: #fff7d6;
    border: 1px solid #fde68a;
}

.lab-login__family--student {
    margin-top: 0.7rem;
    background: #e6fffa;
    border-color: #99f6e4;
}

.lab-login__family-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(217, 119, 6, 0.14);
    color: #b45309;
}

.lab-login__family strong { font-family: var(--lab-display); color: var(--lab-text); }

.lab-login__family p {
    margin: 0.15rem 0 0;
    font-size: 0.86rem;
    line-height: 1.5;
    color: #6b5b2e;
}

.lab-login__card-foot {
    display: none;
    justify-content: space-between;
    margin-top: 1.25rem;
    padding-top: 0.8rem;
    border-top: 1px dashed #dbe3e2;
    font-size: 0.78rem;
    color: var(--lab-muted);
}

/* ── Responsive ── */
@media (max-width: 992px) {
    .lab-login { grid-template-columns: 1fr; min-height: 0; }
    .lab-login__night { padding: 3.75rem 1.5rem 2.25rem; gap: 1rem; }
    .lab-login__visual,
    .lab-login__foot { display: none; }
    .lab-login__title { font-size: clamp(2rem, 7vw, 2.6rem); }
    .lab-login__lead { margin-bottom: 1rem; font-size: 1rem; }
    .lab-login__panel { padding: 2.25rem 1rem 3rem; }
    .lab-login__card-foot { display: flex; }
}

@media (max-width: 576px) {
    .lab-login__card { padding: 2rem 1.25rem 1.25rem; }
    .lab-login__chips li { font-size: 0.8rem; padding: 0.35rem 0.7rem; }
}