/**
 * Tawi ERP - Premium Login (shared)
 * Used by HQ (dealer-admin-ui), Branch PWA, Director view and Platform Owner.
 *
 * The login screen owns its own dark canvas: the authenticated shells stay on
 * their light/dark app themes because every rule here is scoped to
 * .login-premium. The screen is position:fixed so it overlays the shell chrome
 * while signed out; each app still hides it with .hidden / .d-hidden /
 * style.display, which the rules at the bottom force to display:none.
 */

.login-premium {
    position: fixed;
    inset: 0;
    z-index: 120;
    display: flex;
    padding: 2rem 1rem;
    overflow-y: auto;
    color: #F8FAFC;
    background-color: #080C14;
    background-image: radial-gradient(circle at 50% -10%, rgba(16, 185, 129, 0.15) 0%, transparent 60%);
    background-attachment: fixed;
    background-repeat: no-repeat;
    -webkit-font-smoothing: antialiased;
}

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

.login-premium .bg-grid {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
}

.login-premium .watermark {
    position: absolute;
    bottom: -200px;
    right: -250px;
    z-index: 0;
    width: 1000px;
    height: 1000px;
    opacity: 0.15;
    pointer-events: none;
    background: url('/assets/brand/tawi-tree-only.svg') no-repeat center center;
    background-size: contain;
}

.login-premium .glass-panel {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 28rem;
    margin: auto;
    padding: 2.5rem;
    background: rgba(30, 41, 59, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 1.5rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
}

.login-premium .brand-lockup {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.login-premium .brand-mark {
    height: 8rem;
    width: auto;
    filter: drop-shadow(0 25px 25px rgba(0, 0, 0, 0.15));
}

.login-premium .brand-wordmark {
    font-size: 3rem;
    line-height: 1;
    letter-spacing: 0.025em;
    white-space: nowrap;
    color: #FFFFFF;
}

.login-premium .brand-bold {
    font-weight: 700;
    color: #FFFFFF;
}

.login-premium .brand-light {
    font-weight: 300;
    color: #10B981;
}

.login-premium .premium-heading {
    margin: 0 0 2rem;
    text-align: center;
    font-size: 1.125rem;
    font-weight: 500;
    color: #9CA3AF;
}

.login-premium .premium-error {
    min-height: 20px;
    margin-bottom: 0.75rem;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: #F87171;
}

.login-premium .premium-form {
    margin: 0;
    padding: 0;
    background: none;
    border: 0;
}

.login-premium .premium-fields {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.login-premium .premium-input {
    width: 100%;
    margin: 0;
    padding: 1rem 1.25rem;
    font-family: inherit;
    font-size: 1.125rem;
    line-height: 1.4;
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.login-premium .premium-input::placeholder {
    color: #6B7280;
    opacity: 1;
}

.login-premium .premium-input:focus {
    outline: none;
    border-color: #10B981;
    box-shadow: 0 0 0 1px #10B981;
    background: rgba(255, 255, 255, 0.07);
}

.login-premium .premium-input:-webkit-autofill,
.login-premium .premium-input:-webkit-autofill:focus {
    -webkit-text-fill-color: #FFFFFF;
    -webkit-box-shadow: 0 0 0 1000px #0F172A inset;
    caret-color: #FFFFFF;
}

.login-premium .premium-input[aria-invalid="true"] {
    border-color: #EF4444;
    background: rgba(239, 68, 68, 0.08);
    box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.6);
}

.login-premium .premium-password {
    position: relative;
}

.login-premium .premium-password .premium-input {
    padding-right: 3rem;
}

.login-premium .premium-eye {
    position: absolute;
    top: 50%;
    right: 1rem;
    transform: translateY(-50%);
    padding: 0;
    font-size: 1.125rem;
    line-height: 1;
    color: #6B7280;
    background: none;
    border: 0;
    cursor: pointer;
}

.login-premium .premium-eye:hover,
.login-premium .premium-eye:focus-visible {
    color: #D1D5DB;
}

.login-premium .premium-remember {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
    color: #9CA3AF;
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
}

.login-premium .premium-checkbox {
    width: 1.25rem;
    height: 1.25rem;
    margin: 0;
    accent-color: #10B981;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.25rem;
    cursor: pointer;
}

.login-premium .premium-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    margin: 0.25rem 0 0;
    padding: 1rem;
    font-family: inherit;
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1.4;
    color: #FFFFFF;
    background: #059669;
    border: 1px solid transparent;
    border-radius: 0.75rem;
    box-shadow: 0 10px 15px -3px rgba(5, 150, 105, 0.2);
    cursor: pointer;
    transition: background 0.2s ease, box-shadow 0.2s ease;
}

.login-premium .premium-submit:hover {
    background: #10B981;
    box-shadow: 0 10px 20px -3px rgba(16, 185, 129, 0.3);
}

.login-premium .premium-submit:focus-visible {
    outline: 2px solid #6EE7B7;
    outline-offset: 2px;
}

.login-premium .premium-submit:disabled {
    opacity: 0.7;
    cursor: wait;
}

.login-premium .premium-note {
    margin: 2rem 0 0;
    text-align: center;
    font-size: 0.875rem;
    color: #6B7280;
}

.login-premium .install-btn {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: #F8FAFC;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 0.75rem;
    cursor: pointer;
}

.login-premium .sync-status {
    text-align: center;
}

.login-premium .sync-pill {
    display: inline-block;
    padding: 0.125rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: #9CA3AF;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 999px;
}

/* Hiding contract: every shell hides the login screen by adding .hidden,
   .d-hidden or an inline display. These must beat the display:flex above. */
.login-premium.hidden,
.login-premium.d-hidden,
.login-premium[hidden],
.login-premium[style*="display: none"] {
    display: none !important;
}

/* Short viewports: let the card shrink before it scrolls. */
@media (max-height: 780px) {
    .login-premium .brand-mark {
        height: 6rem;
    }
    .login-premium .brand-wordmark {
        font-size: 2.5rem;
    }
    .login-premium .brand-lockup {
        margin-bottom: 1.75rem;
    }
    .login-premium .premium-heading {
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 640px) {
    .login-premium {
        padding: 1.5rem 1rem;
    }
    .login-premium .glass-panel {
        padding: 2rem 1.5rem;
    }
    .login-premium .brand-wordmark {
        font-size: 2.5rem;
    }
    .login-premium .brand-mark {
        height: 6.5rem;
    }
    .login-premium .watermark {
        right: -400px;
        bottom: -150px;
        width: 700px;
        height: 700px;
    }
}