:root {
    --ssi-primary: #1638C7;
    --ssi-primary-dark: #0D2480;
    --ssi-accent: #FF7A00;
    --ssi-accent-hover: #c9223c;
    --ssi-text: #0f172a;
    --ssi-muted: #64748b;
    --ssi-border: rgba(148, 163, 184, 0.35);
    --ssi-surface: rgba(255, 255, 255, 0.82);
    --ssi-glass: rgba(255, 255, 255, 0.55);
}

@keyframes ssi-float {
    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(0, -18px) scale(1.03);
    }
}

@keyframes ssi-rise {
    from {
        opacity: 0;
        transform: translateY(22px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes ssi-shimmer {
    0% {
        background-position: 200% center;
    }

    100% {
        background-position: -200% center;
    }
}

.student-sign-in {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    min-height: calc(100vh - var(--ugv-header-offset, 102px));
    padding: 2.5rem 0 3.5rem;
    background:
        radial-gradient(circle at 12% 18%, rgba(255, 122, 0, 0.14), transparent 28%),
        radial-gradient(circle at 88% 12%, rgba(22, 56, 199, 0.16), transparent 32%),
        radial-gradient(circle at 50% 100%, rgba(22, 56, 199, 0.08), transparent 40%),
        linear-gradient(180deg, #f8fafc 0%, #eef2ff 48%, #f8fafc 100%);
}

.student-sign-in__orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    pointer-events: none;
    z-index: -1;
}

.student-sign-in__orb--one {
    width: 320px;
    height: 320px;
    top: -80px;
    right: -60px;
    background: rgba(255, 122, 0, 0.22);
    animation: ssi-float 9s ease-in-out infinite;
}

.student-sign-in__orb--two {
    width: 280px;
    height: 280px;
    bottom: -40px;
    left: -80px;
    background: rgba(22, 56, 199, 0.18);
    animation: ssi-float 11s ease-in-out infinite reverse;
}

.student-sign-in__shell {
    max-width: 1080px;
    margin: 0 auto;
    border-radius: 28px;
    overflow: hidden;
    animation: ssi-rise 0.65s ease-out both;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.75);
    box-shadow:
        0 1px 2px rgba(15, 23, 42, 0.04),
        0 24px 60px -20px rgba(22, 56, 199, 0.28),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.student-sign-in__grid {
    display: grid;
    grid-template-columns: 1fr;
    min-height: 680px;
}

@media (min-width: 992px) {
    .student-sign-in__grid {
        grid-template-columns: 1.08fr 0.92fr;
    }
}

.student-sign-in__brand {
    position: relative;
    display: none;
    padding: 3rem 2.75rem;
    color: #fff;
    overflow: hidden;
    background:
        linear-gradient(155deg, rgba(22, 56, 199, 0.94) 0%, rgba(15, 58, 117, 0.88) 55%, rgba(255, 122, 0, 0.35) 100%),
        url('https://ugv.edu.bd/storage/gallery_items/45M4ieOxE0jn1zC9Q7C2TtWV66u6q9GULiihGKvX.jpg') center/cover;
}

@media (min-width: 992px) {
    .student-sign-in__brand {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }
}

.student-sign-in__brand::before,
.student-sign-in__brand::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.student-sign-in__brand::before {
    width: 280px;
    height: 280px;
    top: -90px;
    right: -70px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.student-sign-in__brand::after {
    width: 160px;
    height: 160px;
    bottom: 2rem;
    right: 2rem;
    background: rgba(255, 122, 0, 0.25);
    filter: blur(2px);
}

.student-sign-in__brand-top {
    position: relative;
    z-index: 1;
}

.student-sign-in__brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.5rem 0.95rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    backdrop-filter: blur(8px);
}

.student-sign-in__brand h2 {
    font-size: clamp(1.85rem, 2.6vw, 2.6rem);
    font-weight: 800;
    line-height: 1.15;
    margin: 1.35rem 0 1rem;
    color: #fff;
    letter-spacing: -0.02em;
}

.student-sign-in__brand p {
    color: rgba(255, 255, 255, 0.86);
    font-size: 1.02rem;
    line-height: 1.75;
    max-width: 28rem;
    margin: 0;
}

.student-sign-in__stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.75rem;
}

.student-sign-in__stat {
    padding: 0.65rem 0.95rem;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(8px);
    min-width: 118px;
}

.student-sign-in__stat strong {
    display: block;
    font-size: 1.05rem;
    font-weight: 800;
    line-height: 1.2;
}

.student-sign-in__stat span {
    font-size: 0.72rem;
    opacity: 0.82;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.student-sign-in__features {
    position: relative;
    z-index: 1;
    list-style: none;
    padding: 0;
    margin: 2rem 0 0;
    display: grid;
    gap: 0.85rem;
}

.student-sign-in__features li {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    padding: 0.85rem 1rem;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(6px);
    transition: transform 0.25s ease, background 0.25s ease;
}

.student-sign-in__features li:hover {
    transform: translateX(4px);
    background: rgba(255, 255, 255, 0.12);
}

.student-sign-in__features i {
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(255, 122, 0, 0.85), rgba(255, 77, 103, 0.75));
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 8px 18px rgba(255, 122, 0, 0.28);
}

.student-sign-in__mobile-hero {
    display: block;
    padding: 1.35rem 1.5rem 0;
}

@media (min-width: 992px) {
    .student-sign-in__mobile-hero {
        display: none;
    }
}

.student-sign-in__mobile-hero-inner {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.1rem;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--ssi-primary), var(--ssi-primary-dark));
    color: #fff;
    box-shadow: 0 12px 28px rgba(22, 56, 199, 0.22);
}

.student-sign-in__mobile-hero-inner img {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.12);
    padding: 6px;
}

.student-sign-in__mobile-hero-inner h2 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
}

.student-sign-in__mobile-hero-inner p {
    margin: 0.15rem 0 0;
    font-size: 0.78rem;
    opacity: 0.85;
}

.student-sign-in__panel {
    padding: 1.5rem 1.35rem 2rem;
    display: flex;
    align-items: center;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(248, 250, 252, 0.92) 100%);
}

@media (min-width: 576px) {
    .student-sign-in__panel {
        padding: 2.5rem 2.75rem 2.75rem;
    }
}

@media (min-width: 992px) {
    .student-sign-in__panel {
        padding: 3rem 3rem;
    }
}

.student-sign-in__form-wrap {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.student-sign-in__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.student-sign-in__logo {
    width: 64px;
    height: 64px;
    padding: 0;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--ssi-border);
    box-shadow: 0 8px 20px rgba(22, 56, 199, 0.08);
    object-fit: contain;
    flex-shrink: 0;
}

.student-sign-in__header-copy {
    flex: 1;
}

.student-sign-in__eyebrow {
    color: var(--ssi-accent);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.student-sign-in__title {
    color: var(--ssi-text);
    font-size: 1.65rem;
    font-weight: 800;
    margin: 0;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.student-sign-in__subtitle {
    color: var(--ssi-muted);
    font-size: 0.88rem;
    margin: 0.35rem 0 0;
}

.student-sign-in__hint {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    padding: 0.9rem 1rem;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(238, 242, 255, 0.95), rgba(255, 255, 255, 0.9));
    border: 1px solid rgba(22, 56, 199, 0.08);
    margin-bottom: 1.35rem;
    font-size: 0.84rem;
    color: #334155;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.student-sign-in__hint i {
    width: 1.65rem;
    height: 1.65rem;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(22, 56, 199, 0.08);
    color: var(--ssi-primary);
    flex-shrink: 0;
}

.student-sign-in__field {
    margin-bottom: 1rem;
}

.student-sign-in__label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ssi-text);
    margin-bottom: 0.45rem;
    letter-spacing: 0.01em;
}

.student-sign-in__input-group {
    position: relative;
}

.student-sign-in__input-group > i:first-child {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(22, 56, 199, 0.06);
    color: var(--ssi-primary);
    font-size: 0.78rem;
    pointer-events: none;
    transition: background 0.2s ease, color 0.2s ease;
}

.student-sign-in__input-group:focus-within > i:first-child {
    background: rgba(255, 122, 0, 0.12);
    color: var(--ssi-accent);
}

.student-sign-in__input {
    width: 100%;
    border: 1.5px solid var(--ssi-border);
    border-radius: 14px;
    padding: 0.88rem 1rem 0.88rem 3.15rem;
    font-size: 0.95rem;
    color: var(--ssi-text);
    background: rgba(255, 255, 255, 0.92);
    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        transform 0.2s ease,
        background 0.2s ease;
}

.student-sign-in__input::placeholder {
    color: #94a3b8;
}

.student-sign-in__input:hover {
    border-color: rgba(22, 56, 199, 0.22);
    background: #fff;
}

.student-sign-in__input:focus {
    outline: none;
    border-color: rgba(22, 56, 199, 0.45);
    background: #fff;
    box-shadow:
        0 0 0 4px rgba(22, 56, 199, 0.08),
        0 10px 24px rgba(22, 56, 199, 0.06);
    transform: translateY(-1px);
}

.student-sign-in__input.is-invalid {
    border-color: #ef4444;
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.08);
}

.student-sign-in__toggle-password {
    position: absolute;
    right: 0.65rem;
    top: 50%;
    transform: translateY(-50%);
    border: 0;
    width: 2rem;
    height: 2rem;
    border-radius: 10px;
    background: transparent;
    color: #94a3b8;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.student-sign-in__toggle-password:hover {
    background: rgba(22, 56, 199, 0.06);
    color: var(--ssi-primary);
}

.student-sign-in__captcha {
    display: flex;
    gap: 0.75rem;
    align-items: stretch;
}

.student-sign-in__captcha-prompt {
    min-width: 124px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--ssi-primary), var(--ssi-primary-dark));
    color: #fff;
    font-weight: 800;
    font-size: 1rem;
    letter-spacing: 0.03em;
    box-shadow: 0 10px 24px rgba(22, 56, 199, 0.24);
}

.student-sign-in__captcha-prompt i {
    opacity: 0.75;
    font-size: 0.82rem;
}

.student-sign-in__captcha .student-sign-in__input {
    padding-left: 1rem;
}

.student-sign-in__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin: 0.35rem 0 1.35rem;
    flex-wrap: wrap;
}

.student-sign-in__remember {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.84rem;
    color: var(--ssi-muted);
    cursor: pointer;
    user-select: none;
}

.student-sign-in__remember input {
    width: 17px;
    height: 17px;
    accent-color: var(--ssi-accent);
    cursor: pointer;
}

.student-sign-in__submit {
    width: 100%;
    border: 0;
    border-radius: 14px;
    padding: 0.95rem 1.15rem;
    font-size: 0.98rem;
    font-weight: 800;
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    cursor: pointer;
    background: linear-gradient(120deg, var(--ssi-accent) 0%, #FF9933 45%, var(--ssi-accent) 100%);
    background-size: 200% auto;
    box-shadow:
        0 12px 28px rgba(255, 122, 0, 0.32),
        inset 0 1px 0 rgba(255, 255, 255, 0.22);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.student-sign-in__submit:hover {
    transform: translateY(-2px);
    box-shadow:
        0 16px 34px rgba(255, 122, 0, 0.38),
        inset 0 1px 0 rgba(255, 255, 255, 0.22);
    animation: ssi-shimmer 2.5s linear infinite;
}

.student-sign-in__submit:active {
    transform: translateY(0);
}

.student-sign-in__submit i {
    transition: transform 0.2s ease;
}

.student-sign-in__submit:hover i {
    transform: translateX(3px);
}

.student-sign-in__secure-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    margin-top: 1rem;
    font-size: 0.76rem;
    color: #94a3b8;
}

.student-sign-in__secure-note i {
    color: #22c55e;
}

.student-sign-in__footer {
    margin-top: 1.35rem;
    padding-top: 1.15rem;
    border-top: 1px dashed rgba(148, 163, 184, 0.45);
    display: grid;
    gap: 0.65rem;
}

@media (min-width: 480px) {
    .student-sign-in__footer {
        grid-template-columns: 1fr 1fr;
    }
}

.student-sign-in__footer a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.72rem 0.85rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--ssi-border);
    color: var(--ssi-primary);
    font-weight: 700;
    font-size: 0.82rem;
    text-decoration: none;
    transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.student-sign-in__footer a:hover {
    color: var(--ssi-accent);
    border-color: rgba(255, 122, 0, 0.25);
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(22, 56, 199, 0.08);
}

.student-sign-in__alert {
    border-radius: 14px;
    padding: 0.85rem 1rem;
    margin-bottom: 1rem;
    font-size: 0.86rem;
    display: flex;
    gap: 0.65rem;
    align-items: flex-start;
}

.student-sign-in__alert i {
    margin-top: 0.1rem;
}

.student-sign-in__alert--danger {
    background: linear-gradient(135deg, #fef2f2, #fff1f2);
    border: 1px solid #fecaca;
    color: #991b1b;
}

.student-sign-in__alert--warning {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border: 1px solid #fcd34d;
    color: #92400e;
}

.student-sign-in__alert--success {
    background: linear-gradient(135deg, #ecfdf5, #f0fdf4);
    border: 1px solid #a7f3d0;
    color: #065f46;
}

.student-sign-in__alert ul {
    margin: 0;
    padding-left: 1rem;
}

.student-sign-in__invalid {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.8rem;
    color: #dc2626;
}

.student-sign-in__forgot-link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--ssi-primary);
    text-decoration: none;
}

.student-sign-in__forgot-link:hover {
    color: var(--ssi-primary-dark);
    text-decoration: underline;
}

.student-sign-in__phone-verify {
    display: flex;
    align-items: stretch;
    gap: 0.75rem;
}

.student-sign-in__phone-verify .student-sign-in__input-group {
    flex: 1 1 auto;
}

.student-sign-in__phone-suffix {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 5.5rem;
    padding: 0 1rem;
    border-radius: 0.85rem;
    border: 1px solid var(--ssi-border);
    background: rgba(22, 56, 199, 0.08);
    color: var(--ssi-primary-dark);
    font-weight: 700;
    letter-spacing: 0.08em;
}

.student-sign-in__phone-note {
    margin: 0.65rem 0 0;
    font-size: 0.82rem;
    color: var(--ssi-muted);
}

.student-sign-in__resend-form {
    margin-top: 1rem;
    text-align: center;
}

.student-sign-in__link-button {
    border: 0;
    background: transparent;
    color: var(--ssi-primary);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0;
}

.student-sign-in__link-button:hover:not(:disabled) {
    color: var(--ssi-primary-dark);
    text-decoration: underline;
}

.student-sign-in__link-button:disabled {
    color: var(--ssi-muted);
    cursor: not-allowed;
}

.student-sign-in__steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.55rem;
    margin-bottom: 1.35rem;
}

.student-sign-in__step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.45rem;
    text-align: center;
}

.student-sign-in__step-marker {
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--ssi-muted);
    background: rgba(148, 163, 184, 0.14);
    border: 1px solid rgba(148, 163, 184, 0.25);
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.student-sign-in__step-label {
    font-size: 0.68rem;
    font-weight: 700;
    color: #94a3b8;
    line-height: 1.2;
}

.student-sign-in__step.is-current .student-sign-in__step-marker {
    color: #fff;
    background: linear-gradient(135deg, var(--ssi-primary), var(--ssi-primary-dark));
    border-color: transparent;
    box-shadow: 0 8px 18px rgba(22, 56, 199, 0.24);
}

.student-sign-in__step.is-current .student-sign-in__step-label {
    color: var(--ssi-primary-dark);
}

.student-sign-in__step.is-complete .student-sign-in__step-marker {
    color: #fff;
    background: linear-gradient(135deg, #16a34a, #15803d);
    border-color: transparent;
}

.student-sign-in__step.is-complete .student-sign-in__step-label {
    color: #15803d;
}

.student-sign-in__account-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.55rem 0.85rem;
    margin-bottom: 1rem;
    border-radius: 999px;
    background: rgba(22, 56, 199, 0.06);
    border: 1px solid rgba(22, 56, 199, 0.1);
    font-size: 0.82rem;
    color: var(--ssi-muted);
}

.student-sign-in__account-chip-label {
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ssi-primary);
}

.student-sign-in__account-chip strong {
    color: var(--ssi-text);
    font-size: 0.92rem;
    letter-spacing: 0.03em;
}

.student-sign-in__digit-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 1rem 0.75rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.92);
    border: 1.5px solid var(--ssi-border);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.student-sign-in__digit-grid--otp {
    padding: 1.15rem 0.85rem;
}

.student-sign-in__digit-grid:focus-within {
    border-color: rgba(37, 211, 102, 0.55);
    box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.12);
}

.student-sign-in__digit-grid.is-invalid {
    border-color: #ef4444;
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.08);
}

.student-sign-in__digit-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
}

.student-sign-in__digit-separator {
    width: 0.45rem;
    height: 0.45rem;
    border-radius: 999px;
    background: #cbd5e1;
    flex-shrink: 0;
}

.student-sign-in__digit-box {
    width: 2.65rem;
    height: 3.1rem;
    border: 1.5px solid #d1d5db;
    border-radius: 12px;
    background: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1;
    color: var(--ssi-text);
    padding: 0;
    transition:
        border-color 0.15s ease,
        box-shadow 0.15s ease,
        background 0.15s ease,
        transform 0.15s ease;
}

input.student-sign-in__digit-box {
    appearance: none;
    -webkit-appearance: none;
}

input.student-sign-in__digit-box:focus,
input.student-sign-in__digit-box.is-active {
    outline: none;
    border-color: #25d366;
    box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.18);
    transform: translateY(-1px);
}

input.student-sign-in__digit-box.is-filled {
    border-color: #86efac;
    background: #f0fdf4;
}

.student-sign-in__digit-box.is-locked {
    border-color: rgba(22, 56, 199, 0.18);
    background: linear-gradient(180deg, rgba(22, 56, 199, 0.08), rgba(22, 56, 199, 0.04));
    color: var(--ssi-primary-dark);
    cursor: default;
    user-select: none;
}

.student-sign-in__phone-help {
    margin: 0.85rem 0 0;
    font-size: 0.82rem;
    color: var(--ssi-muted);
    text-align: center;
}

.student-sign-in__phone-help strong {
    color: var(--ssi-text);
}

.student-sign-in__submit:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    animation: none;
}

.student-sign-in__submit:disabled:hover {
    transform: none;
    box-shadow: none;
    animation: none;
}

@media (max-width: 575px) {
    .student-sign-in__digit-box {
        width: 2.35rem;
        height: 2.85rem;
        font-size: 1.2rem;
        border-radius: 10px;
    }

    .student-sign-in__digit-grid {
        gap: 0.35rem;
        padding: 0.85rem 0.55rem;
    }

    .student-sign-in__digit-group {
        gap: 0.35rem;
    }

    .student-sign-in__step-label {
        font-size: 0.62rem;
    }
}

@media (max-width: 380px) {
    .student-sign-in__digit-box {
        width: 2.1rem;
        height: 2.65rem;
        font-size: 1.05rem;
    }
}

.student-sign-in__password-panel {
    margin-bottom: 1rem;
    padding: 1rem;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(238, 242, 255, 0.95), rgba(255, 255, 255, 0.92));
    border: 1px solid rgba(22, 56, 199, 0.08);
}

.student-sign-in__password-panel-title {
    margin: 0 0 0.75rem;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ssi-primary);
}

.student-sign-in__password-rules {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.45rem;
}

.student-sign-in__password-rule {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.82rem;
    color: var(--ssi-muted);
    transition: color 0.2s ease;
}

.student-sign-in__password-rule-dot {
    width: 0.55rem;
    height: 0.55rem;
    border-radius: 999px;
    background: #cbd5e1;
    flex-shrink: 0;
    transition: background 0.2s ease, box-shadow 0.2s ease;
}

.student-sign-in__password-rule.is-ok {
    color: #166534;
}

.student-sign-in__password-rule.is-ok .student-sign-in__password-rule-dot {
    background: #16a34a;
    box-shadow: 0 0 0 2px rgba(22, 163, 74, 0.15);
}

.student-sign-in__password-rule.is-bad {
    color: #64748b;
}

.student-sign-in__password-strength {
    margin-top: 0.85rem;
}

.student-sign-in__password-strength-bar {
    height: 0.42rem;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.18);
    overflow: hidden;
}

.student-sign-in__password-strength-bar span {
    display: block;
    height: 100%;
    border-radius: inherit;
    transition: width 0.2s ease, background 0.2s ease;
}

.student-sign-in__password-strength-bar span.is-weak {
    background: #ef4444;
}

.student-sign-in__password-strength-bar span.is-medium {
    background: #f59e0b;
}

.student-sign-in__password-strength-bar span.is-good {
    background: #3b82f6;
}

.student-sign-in__password-strength-bar span.is-strong {
    background: #16a34a;
}

.student-sign-in__password-strength-label {
    margin: 0.45rem 0 0;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ssi-muted);
}

.student-sign-in__password-note {
    margin: 0.75rem 0 0;
    font-size: 0.76rem;
    color: #94a3b8;
    line-height: 1.5;
}

.student-sign-in__unavailable {
    text-align: center;
}

.student-sign-in__header--center {
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.student-sign-in__header--center .student-sign-in__header-copy {
    align-items: center;
}

.student-sign-in__unavailable-icon {
    position: relative;
    width: 4.5rem;
    height: 4.5rem;
    margin: 0 auto 1.25rem;
    display: grid;
    place-items: center;
    color: var(--ssi-accent);
    font-size: 1.45rem;
}

.student-sign-in__unavailable-icon-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 122, 0, 0.14), rgba(22, 56, 199, 0.12));
    border: 1px solid rgba(255, 122, 0, 0.18);
    animation: ssi-float 6s ease-in-out infinite;
}

.student-sign-in__unavailable-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 1rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #b45309;
    background: rgba(251, 191, 36, 0.16);
    border: 1px solid rgba(251, 191, 36, 0.35);
}

.student-sign-in__unavailable-badge i {
    font-size: 0.45rem;
    color: #f59e0b;
    animation: ssi-pulse-dot 1.8s ease-in-out infinite;
}

@keyframes ssi-pulse-dot {
    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.35;
    }
}

.student-sign-in__unavailable-card {
    margin: 1.5rem 0 1.35rem;
    padding: 1rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid var(--ssi-border);
    text-align: left;
}

.student-sign-in__unavailable-row {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    padding: 0.65rem 0;
}

.student-sign-in__unavailable-row + .student-sign-in__unavailable-row {
    border-top: 1px dashed rgba(148, 163, 184, 0.35);
}

.student-sign-in__unavailable-row i {
    width: 2rem;
    height: 2rem;
    border-radius: 0.65rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--ssi-primary);
    background: rgba(22, 56, 199, 0.08);
    font-size: 0.85rem;
}

.student-sign-in__unavailable-row strong {
    display: block;
    margin-bottom: 0.15rem;
    font-size: 0.86rem;
    color: var(--ssi-text);
}

.student-sign-in__unavailable-row span {
    display: block;
    font-size: 0.8rem;
    line-height: 1.55;
    color: var(--ssi-muted);
}

.student-sign-in__submit--ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    width: 100%;
    text-decoration: none;
    background: linear-gradient(135deg, rgba(22, 56, 199, 0.08), rgba(22, 56, 199, 0.04));
    color: var(--ssi-primary);
    border: 1px solid rgba(22, 56, 199, 0.18);
    box-shadow: none;
}

.student-sign-in__submit--ghost:hover {
    color: #fff;
    background: linear-gradient(135deg, var(--ssi-primary), var(--ssi-primary-dark));
    border-color: transparent;
}