/**
 * ==============================================================================
 * SADRA VISUALS — ARTBOOK PHOTOGRAPHY GALLERY
 * PUBLIC STUDIO ADMIN LOGIN CONTROLLER STYLESHEET
 * ==============================================================================
 * Mobile-first touch ergonomics:
 * - >= 44px tap targets
 * - >= 16px font size on inputs to block iOS auto-zoom
 * - Zero horizontal overflow
 * - Glowing darkroom aesthetics
 */

/* Header Login Button (Icon-Only) */
.admin-login-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--min-tap-target, 44px);
    height: var(--min-tap-target, 44px);
    min-width: 44px;
    min-height: 44px;
    padding: 0;
    border-radius: var(--radius-pill, 9999px);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.12));
    color: var(--text-secondary, #cbd5e1);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    outline: none;
    -webkit-tap-highlight-color: transparent;
    text-decoration: none;
    box-sizing: border-box;
}

.admin-login-pill:hover,
.admin-login-pill:focus-visible {
    color: var(--accent-gold, #d4af37);
    border-color: rgba(212, 175, 55, 0.45);
    background: rgba(212, 175, 55, 0.08);
    box-shadow: 0 0 16px rgba(212, 175, 55, 0.18);
}

.admin-login-pill.is-authenticated {
    color: var(--accent-gold, #d4af37);
    border-color: rgba(212, 175, 55, 0.4);
    background: rgba(212, 175, 55, 0.12);
}

.admin-login-pill .pill-icon {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
}

/* Modal Backdrop Overlay */
.admin-login-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: rgba(4, 5, 8, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-sizing: border-box;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                visibility 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.admin-login-modal-backdrop.is-open {
    opacity: 1;
    visibility: visible;
}

/* Modal Card */
.admin-login-modal-card {
    position: relative;
    width: 100%;
    max-width: 440px;
    background: var(--bg-card, #0f131c);
    border: 1px solid var(--border-medium, rgba(255, 255, 255, 0.12));
    border-radius: var(--radius-lg, 16px);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.65), 0 0 32px rgba(212, 175, 55, 0.08);
    padding: clamp(20px, 3.5vw, 28px);
    box-sizing: border-box;
    transform: translateY(14px) scale(0.98);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.admin-login-modal-backdrop.is-open .admin-login-modal-card {
    transform: translateY(0) scale(1);
}

/* Modal Header */
.admin-login-modal-header {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 20px;
}

.admin-login-icon-badge {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: rgba(212, 175, 55, 0.12);
    border: 1px solid rgba(212, 175, 55, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.admin-login-modal-title {
    font-family: var(--font-display, 'Space Grotesk', sans-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary, #ffffff);
    margin: 0 0 4px 0;
    line-height: 1.2;
}

.admin-login-modal-sub {
    font-family: var(--font-sans, inherit);
    font-size: 0.82rem;
    color: var(--text-secondary, #94a3b8);
    margin: 0;
    line-height: 1.45;
}

.admin-login-close-btn {
    margin-left: auto;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-muted, #64748b);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.admin-login-close-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

/* Form Styles */
.admin-login-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.admin-login-input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.admin-login-label {
    font-family: var(--font-mono, monospace);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary, #cbd5e1);
}

.admin-password-wrap {
    position: relative;
    width: 100%;
}

.admin-login-input {
    width: 100%;
    height: 44px;
    min-height: 44px;
    padding: 0 42px 0 14px;
    background: rgba(8, 9, 12, 0.75);
    border: 1px solid var(--border-medium, rgba(255, 255, 255, 0.12));
    border-radius: var(--radius-md, 10px);
    color: var(--text-primary, #ffffff);
    font-family: var(--font-sans, inherit);
    font-size: 16px; /* iOS Safari zoom prevention */
    outline: none;
    box-sizing: border-box;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.admin-login-input:focus {
    border-color: var(--accent-gold, #d4af37);
    box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.25);
}

.admin-pwd-toggle-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    color: var(--text-muted, #94a3b8);
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: color 0.2s ease;
}

.admin-pwd-toggle-btn:hover {
    color: var(--text-primary, #ffffff);
}

.admin-login-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.admin-remember-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    color: var(--text-secondary, #94a3b8);
    cursor: pointer;
    user-select: none;
}

.admin-remember-label input[type="checkbox"] {
    accent-color: var(--accent-gold, #d4af37);
    width: 16px;
    height: 16px;
}

/* Alert Box */
.admin-login-alert {
    padding: 10px 14px;
    border-radius: var(--radius-md, 8px);
    font-size: 0.82rem;
    line-height: 1.45;
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #fca5a5;
    animation: alertSlide 0.2s ease;
}

.admin-login-alert.alert-success {
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.35);
    color: #6ee7b7;
}

.admin-login-alert.alert-warning {
    background: rgba(212, 175, 55, 0.12);
    border-color: rgba(212, 175, 55, 0.35);
    color: #fde047;
}

@keyframes alertSlide {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Actions */
.admin-login-actions {
    display: flex;
    gap: 12px;
    margin-top: 6px;
}

.btn-studio-cancel {
    flex: 1;
    min-height: 44px;
    border-radius: var(--radius-md, 10px);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.1));
    color: var(--text-secondary, #cbd5e1);
    font-family: var(--font-sans, inherit);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-studio-cancel:hover {
    background: rgba(255, 255, 255, 0.09);
    color: #ffffff;
}

.btn-studio-submit {
    flex: 1.5;
    min-height: 44px;
    border-radius: var(--radius-md, 10px);
    background: var(--accent-gold, #d4af37);
    border: 1px solid var(--accent-gold, #d4af37);
    color: #08090c;
    font-family: var(--font-sans, inherit);
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 16px rgba(212, 175, 55, 0.25);
    transition: all 0.2s ease;
}

.btn-studio-submit:hover:not(:disabled) {
    background: #e5bd3f;
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.35);
    transform: translateY(-1px);
}

.btn-studio-submit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

.btn-submit-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(8, 9, 12, 0.3);
    border-top-color: #08090c;
    border-radius: 50%;
    animation: btnSpin 0.7s linear infinite;
}

@keyframes btnSpin {
    to { transform: rotate(360deg); }
}

/* Mobile Bottom-sheet Adapter */
@media (max-width: 480px) {
    .admin-login-modal-backdrop {
        align-items: flex-end;
        padding: 0;
    }

    .admin-login-modal-card {
        max-width: 100%;
        border-bottom-left-radius: 0;
        border-bottom-right-radius: 0;
        padding: 24px 20px calc(24px + env(safe-area-inset-bottom, 0px));
        transform: translateY(100%);
    }

    .admin-login-modal-backdrop.is-open .admin-login-modal-card {
        transform: translateY(0);
    }
}