:root {
    --login-bg: #06162d;
    --login-visual-overlay: rgba(2, 8, 23, 0.28);
    --login-panel: rgba(4, 16, 35, 0.82);
    --login-panel-border: rgba(255, 255, 255, 0.12);
    --login-card: rgba(7, 18, 35, 0.48);
    --login-card-border: rgba(255, 255, 255, 0.16);
    --login-text: #f8fafc;
    --login-muted: #cbd5e1;
    --login-shadow: 0 28px 80px rgba(2, 6, 23, 0.42);
    --login-primary: #2563eb;
    --login-cyan: #06b6d4;
    --login-purple: #7c3aed;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body.login-premium {
    margin: 0;
    min-height: 100dvh;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--login-text);
    background: var(--login-bg);
    overflow-x: hidden;
    overflow-y: auto;
}

button, input { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }

.login-shell {
    min-height: 100dvh;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.28fr);
    position: relative;
}

.login-visual {
    position: relative;
    min-height: 100dvh;
    overflow-x: hidden;
    overflow-y: auto;
    background: #06162d;
}

.login-visual-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center center;
    padding: 0;
    filter: saturate(1.03) contrast(1.02);
}

.login-visual::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(2, 8, 23, .04), rgba(2, 8, 23, .16));
    pointer-events: none;
}

.login-sidebar {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(.65rem, 1.9vw, 1.45rem);
    background: var(--login-panel);
    border-left: 1px solid rgba(255, 255, 255, .10);
    backdrop-filter: blur(18px);
    box-shadow: inset 1px 0 0 rgba(255, 255, 255, .04);
}

.login-sidebar::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 18% 24%, rgba(37, 99, 235, 0.16), transparent 14rem),
        radial-gradient(circle at 82% 78%, rgba(124, 58, 237, 0.10), transparent 16rem);
    pointer-events: none;
}

.login-card {
    position: relative;
    z-index: 1;
    width: min(100%, 292px);
    padding: 1.28rem 1.1rem 1.08rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, .10);
    background: rgba(7, 18, 35, .40);
    backdrop-filter: blur(18px);
    box-shadow: var(--login-shadow);
}

.login-copy { margin-bottom: 1.25rem; }
.login-copy h1 {
    margin: 0;
    font-size: clamp(1.6rem, 2.05vw, 1.92rem);
    line-height: 1.05;
    letter-spacing: 0;
}

.login-subtitle {
    margin: .42rem 0 0;
    color: var(--login-muted);
    line-height: 1.5;
    font-size: .94rem;
}

.login-alert {
    margin: 0 0 .6rem;
    padding: .7rem .84rem;
    border-radius: 13px;
    border: 1px solid rgba(248, 113, 113, .30);
    background: rgba(127, 29, 29, .26);
    color: #fecaca;
    box-shadow: 0 10px 28px rgba(15, 23, 42, .18);
}

.login-alert strong { display: block; margin-bottom: .35rem; color: #fff1f2; }
.login-alert ul { margin: .35rem 0 0; padding-left: 1.1rem; }
.login-alert li + li { margin-top: .2rem; }

.login-form { display: grid; gap: .95rem; }
.login-field { display: grid; gap: .5rem; }
.login-field > span {
    color: #e2e8f0;
    font-size: .87rem;
    font-weight: 800;
}

.login-field input {
    width: 100%;
    min-height: 2.68rem;
    padding: .7rem .84rem;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 13px;
    background: rgba(15, 23, 42, .44);
    color: #f8fafc;
    outline: none;
    transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
}

.login-field input::placeholder { color: #94a3b8; }
.login-field input:focus {
    border-color: rgba(96, 165, 250, .9);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, .18);
    background: rgba(15, 23, 42, .58);
}

.password-field {
    position: relative;
    display: flex;
    align-items: center;
}

.password-field input { padding-right: 6rem; }

.password-toggle {
    position: absolute;
    right: .45rem;
    top: 50%;
    transform: translateY(-50%);
    min-height: 1.95rem;
    padding: .32rem .56rem;
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 999px;
    background: rgba(255, 255, 255, .08);
    color: #e2e8f0;
    font-size: .78rem;
    font-weight: 800;
}

.remember-row {
    display: inline-flex;
    align-items: center;
    gap: .7rem;
    color: #dbe4f0;
    font-size: .92rem;
    user-select: none;
}

.remember-row input {
    width: 1rem;
    height: 1rem;
    margin: 0;
    accent-color: #60a5fa;
}

.submit-button {
    width: 100%;
    min-height: 2.68rem;
    margin-top: -.03rem;
    border: 0;
    border-radius: 13px;
    color: #fff;
    font-size: 1rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--login-primary), var(--login-cyan) 52%, var(--login-purple));
    box-shadow: 0 16px 32px rgba(37, 99, 235, .28);
    transition: transform .16s ease, box-shadow .16s ease;
}

.submit-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, .34);
}

.login-footnote {
    margin: .62rem 0 0;
    color: #cbd5e1;
    font-size: .87rem;
    line-height: 1.55;
}

@media (max-width: 1100px) {
    .login-shell {
        grid-template-columns: minmax(0, 1.4fr) minmax(16rem, .78fr);
    }
}

@media (max-width: 900px) {
    body.login-premium { overflow: auto; }
    .login-shell {
        grid-template-columns: 1fr;
        min-height: 100dvh;
    }

    .login-visual {
        min-height: 48vh;
    }

    .login-visual-image {
        object-fit: contain;
        object-position: center center;
        padding: 0;
    }

    .login-sidebar {
        min-height: 52vh;
        border-left: 0;
        border-top: 1px solid rgba(255, 255, 255, .10);
    }
}

@media (max-width: 560px) {
    .login-visual { min-height: 38vh; }
    .login-sidebar {
        padding: .75rem;
        align-items: flex-start;
    }
    .login-card {
        width: 100%;
        padding: 1.1rem;
        border-radius: 16px;
    }
    .login-copy h1 { font-size: 1.52rem; }
    .login-subtitle { font-size: .93rem; }
    .login-field input { min-height: 2.72rem; }
    .password-field input { padding-right: 5rem; }
}

.login-support {
    display: flex;
    align-items: center;
    gap: .75rem;
    margin-top: 1rem;
    padding-top: .95rem;
    border-top: 1px solid rgba(255, 255, 255, .08);
}

.login-support-icon {
    width: 2rem;
    height: 2rem;
    display: grid;
    place-items: center;
    border-radius: 999px;
    background: rgba(37, 99, 235, .12);
    color: #22c55e;
    flex: 0 0 auto;
}

.login-support-icon svg {
    width: 1.05rem;
    height: 1.05rem;
}

.login-support-copy {
    min-width: 0;
    display: grid;
    gap: .15rem;
}

.login-support-label {
    color: #cbd5e1;
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .02em;
}

.login-support-phone {
    color: #f8fafc;
    font-size: .95rem;
    font-weight: 800;
    text-decoration: none;
}

.login-support-phone:hover {
    text-decoration: underline;
}

.login-support-phone {
    display: inline-flex;
    align-items: baseline;
    gap: .18rem;
}

.login-support-area {
    font-size: .78rem;
    font-weight: 700;
    color: #cbd5e1;
    opacity: .92;
}

.login-support-number {
    font-size: .96rem;
    font-weight: 900;
    color: #f8fafc;
    letter-spacing: .01em;
}