/* ================================================================
   WakaKur — Login Page (split-screen professional layout)
   ================================================================ */

:root {
    --login-navy: #0f172a;
    --login-navy-soft: #1e293b;
    --login-blue: #2563eb;
    --login-blue-hover: #1d4ed8;
    --login-blue-light: #dbeafe;
    --login-text: #0f172a;
    --login-muted: #64748b;
    --login-border: #e2e8f0;
    --login-panel-bg: #f8fafc;
    --login-radius: 12px;
    --login-radius-sm: 10px;
    --login-brand-width: 58%;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

.login-body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    color: var(--login-text);
    background: var(--login-panel-bg);
    -webkit-font-smoothing: antialiased;
}

.login-shell {
    display: flex;
    min-height: 100vh;
}

/* ── Left brand panel ── */
.login-brand {
    position: relative;
    flex: 0 0 var(--login-brand-width);
    max-width: var(--login-brand-width);
    min-height: 100vh;
    background: linear-gradient(145deg, #0b1220 0%, var(--login-navy) 45%, #162544 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 3.25rem 3.75rem 2.75rem;
    overflow: hidden;
}

.login-brand-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 95%);
    pointer-events: none;
}

.login-brand-top,
.login-brand-content,
.login-brand-footer {
    position: relative;
    z-index: 1;
}

.login-brand-top {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 2.5rem;
}

.login-brand-logo {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: #fff;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
}

.login-brand-name {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.login-brand-content {
    flex: 1;
}

.login-brand-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin: 0 0 1rem;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #93c5fd;
}

.login-brand-title {
    margin: 0 0 1.15rem;
    font-size: clamp(1.85rem, 2.8vw, 2.45rem);
    font-weight: 700;
    line-height: 1.22;
    letter-spacing: -0.025em;
    max-width: 28ch;
}

.login-brand-desc {
    margin: 0 0 2.25rem;
    font-size: 1rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.72);
    max-width: 46ch;
}

.login-feature-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.login-feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    font-size: 0.95rem;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.82);
    max-width: 48ch;
}

.login-feature-icon {
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: rgba(37, 99, 235, 0.18);
    color: #93c5fd;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.login-brand-footer {
    margin: 2rem 0 0;
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.45);
}

/* ── Right login panel ── */
.login-panel {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 2rem;
    background: var(--login-panel-bg);
}

.login-panel-inner {
    width: 100%;
    max-width: 420px;
}

.login-school-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 1.75rem;
    padding: 0.4rem 0.85rem;
    border-radius: 999px;
    background: var(--login-blue-light);
    color: var(--login-blue);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.login-panel-header {
    margin-bottom: 1.75rem;
}

.login-panel-header h2 {
    margin: 0 0 0.4rem;
    font-size: 1.85rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--login-text);
}

.login-panel-header p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--login-muted);
}

.login-alert {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    padding: 0.75rem 0.9rem;
    border-radius: var(--login-radius-sm);
    font-size: 0.875rem;
    line-height: 1.45;
    margin-bottom: 1.25rem;
}

.login-alert i {
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.login-alert-danger {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.login-alert-success {
    background: #f0fdf4;
    color: #15803d;
    border: 1px solid #bbf7d0;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
}

.login-field label {
    display: block;
    margin-bottom: 0.45rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #334155;
}

.login-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.login-input-icon {
    position: absolute;
    left: 0.95rem;
    color: #94a3b8;
    font-size: 1rem;
    pointer-events: none;
}

.login-input {
    width: 100%;
    height: 48px;
    padding: 0 2.75rem 0 2.65rem;
    border: 1px solid var(--login-border);
    border-radius: var(--login-radius-sm);
    background: #fff;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--login-text);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.login-input::placeholder {
    color: #94a3b8;
}

.login-input:focus {
    outline: none;
    border-color: var(--login-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.login-toggle-password {
    position: absolute;
    right: 0.65rem;
    width: 34px;
    height: 34px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: #94a3b8;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s, background 0.15s;
}

.login-toggle-password:hover {
    color: var(--login-blue);
    background: #f1f5f9;
}

.login-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    height: 50px;
    margin-top: 0.35rem;
    border: none;
    border-radius: var(--login-radius-sm);
    background: var(--login-blue);
    color: #fff;
    font-family: inherit;
    font-size: 0.98rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.28);
}

.login-submit:hover {
    background: var(--login-blue-hover);
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.32);
}

.login-submit:active {
    transform: translateY(1px);
}

.login-panel-note {
    margin: 1.35rem 0 0;
    text-align: center;
    font-size: 0.82rem;
    color: var(--login-muted);
    line-height: 1.5;
}

/* ── Responsive ── */
@media (min-width: 1400px) {
    :root {
        --login-brand-width: 62%;
    }

    .login-brand {
        padding: 3.5rem 4.5rem 3rem;
    }

    .login-brand-title {
        max-width: 32ch;
    }

    .login-brand-desc,
    .login-feature-list li {
        max-width: 52ch;
    }
}

@media (max-width: 991.98px) {
    .login-shell {
        flex-direction: column;
    }

    .login-brand {
        flex: none;
        max-width: none;
        width: 100%;
        min-height: auto;
        padding: 2rem 1.5rem;
    }

    .login-brand-top {
        margin-bottom: 1.5rem;
    }

    .login-brand-title {
        max-width: none;
        font-size: 1.5rem;
    }

    .login-brand-desc {
        max-width: none;
        margin-bottom: 1.25rem;
    }

    .login-feature-list {
        gap: 0.75rem;
    }

    .login-brand-footer {
        margin-top: 1.5rem;
    }

    .login-panel {
        padding: 2rem 1.25rem 2.5rem;
    }
}

@media (max-width: 575.98px) {
    .login-brand {
        padding: 1.5rem 1.15rem;
    }

    .login-panel-header h2 {
        font-size: 1.55rem;
    }
}