/* InstiCloud Authentication Design System */

:root {
    --ic-primary: #2563eb;
    --ic-primary-dark: #1e40af;
    --ic-primary-rgb: 37, 99, 235;
    --ic-shell-bg: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(37, 99, 235, 0.18) 0%, transparent 60%),
        linear-gradient(160deg, #0b1220 0%, #111827 40%, #1e293b 70%, #172554 100%);
    --ic-text: #ffffff;
    --ic-text-muted: rgba(255, 255, 255, 0.68);
    --ic-text-subtle: rgba(255, 255, 255, 0.45);
    --ic-glass: rgba(255, 255, 255, 0.07);
    --ic-glass-border: rgba(255, 255, 255, 0.12);
    --ic-glass-highlight: rgba(255, 255, 255, 0.04);
    --ic-input-bg: rgba(255, 255, 255, 0.08);
    --ic-input-border: rgba(255, 255, 255, 0.16);
    --ic-input-text: #ffffff;
    --ic-input-placeholder: rgba(255, 255, 255, 0.38);
    --ic-particle: rgba(96, 165, 250, 0.55);
    --ic-line: rgba(59, 130, 246, 0.28);
    --ic-danger: #f87171;
    --ic-success: #34d399;
    --ic-warning: #fbbf24;
    --ic-card-shadow: 0 32px 64px rgba(0, 0, 0, 0.5), 0 8px 24px rgba(37, 99, 235, 0.08);
    --ic-safe-top: env(safe-area-inset-top, 0px);
    --ic-safe-bottom: env(safe-area-inset-bottom, 0px);
}

@media (prefers-color-scheme: light) {
    :root {
        --ic-shell-bg: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(37, 99, 235, 0.12) 0%, transparent 60%),
            linear-gradient(160deg, #f0f4ff 0%, #e8eef9 40%, #dbeafe 70%, #eff6ff 100%);
        --ic-text: #0f172a;
        --ic-text-muted: rgba(15, 23, 42, 0.72);
        --ic-text-subtle: rgba(15, 23, 42, 0.5);
        --ic-glass: rgba(255, 255, 255, 0.82);
        --ic-glass-border: rgba(255, 255, 255, 0.95);
        --ic-glass-highlight: rgba(255, 255, 255, 0.6);
        --ic-input-bg: rgba(255, 255, 255, 0.95);
        --ic-input-border: rgba(15, 23, 42, 0.12);
        --ic-input-text: #0f172a;
        --ic-input-placeholder: rgba(15, 23, 42, 0.4);
        --ic-particle: rgba(37, 99, 235, 0.35);
        --ic-line: rgba(37, 99, 235, 0.15);
        --ic-card-shadow: 0 24px 48px rgba(15, 23, 42, 0.1), 0 8px 24px rgba(37, 99, 235, 0.08);
    }

    body.insticloud-auth-page {
        background: #f0f4ff !important;
    }

    .insticloud-brand-connector {
        color: rgba(15, 23, 42, 0.25) !important;
    }

    .insticloud-auth-card label,
    .insticloud-auth-card .custom-control-label span {
        color: rgba(15, 23, 42, 0.85) !important;
    }

    .insticloud-auth-card .forgot-link {
        color: rgba(15, 23, 42, 0.65) !important;
    }

    .insticloud-auth-card .forgot-link:hover,
    .insticloud-auth-card .forgot-link:focus-visible {
        color: var(--ic-primary) !important;
    }

    .insticloud-auth-footer {
        color: rgba(15, 23, 42, 0.4) !important;
    }

    .ic-alert-success {
        background: rgba(52, 211, 153, 0.12) !important;
        border-color: rgba(52, 211, 153, 0.35) !important;
        color: #047857 !important;
    }

    .ic-alert-error {
        background: rgba(248, 113, 113, 0.12) !important;
        border-color: rgba(248, 113, 113, 0.35) !important;
        color: #b91c1c !important;
    }

    .ic-password-toggle {
        color: rgba(15, 23, 42, 0.5) !important;
    }

    .ic-caps-warning {
        color: #b45309 !important;
    }
}

body.insticloud-auth-page {
    background: #0b1220 !important;
}

body.insticloud-auth-page.pb-5 {
    padding-bottom: 0 !important;
}

body.insticloud-auth-page .main-content {
    padding-top: 0 !important;
    background: transparent;
}

.insticloud-auth-shell {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding:
        calc(clamp(1.5rem, 4vw, 3rem) + var(--ic-safe-top))
        1rem
        calc(clamp(2rem, 5vw, 4rem) + var(--ic-safe-bottom));
    background: var(--ic-shell-bg);
    overflow: hidden;
}

#networkCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.insticloud-auth-card-wrap {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: var(--ic-card-max, 440px);
}

.insticloud-auth-card-wrap.ic-animate-in {
    animation: ic-card-enter 0.55s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes ic-card-enter {
    from {
        opacity: 0;
        transform: translateY(18px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.insticloud-brand-row.ic-fade-in {
    animation: ic-fade-in 0.6s ease 0.1s both;
}

@keyframes ic-fade-in {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.insticloud-auth-card {
    position: relative;
    background: var(--ic-glass);
    backdrop-filter: blur(24px) saturate(140%);
    -webkit-backdrop-filter: blur(24px) saturate(140%);
    border: 1px solid var(--ic-glass-border);
    border-radius: 24px;
    box-shadow: 0 0 0 1px var(--ic-glass-highlight) inset, var(--ic-card-shadow);
    padding: clamp(2rem, 5vw, 2.75rem) clamp(1.5rem, 4vw, 2.25rem) clamp(1.75rem, 4vw, 2.25rem);
}

.insticloud-brand-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.insticloud-brand-logo {
    object-fit: contain;
    flex-shrink: 0;
}

.insticloud-brand-logo--primary {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 8px 24px rgba(88, 28, 135, 0.25);
}

.insticloud-brand-logo--secondary {
    width: 44px;
    height: 44px;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.25));
}

.insticloud-brand-connector {
    color: rgba(255, 255, 255, 0.35);
    font-size: 1.25rem;
    font-weight: 300;
    line-height: 1;
    user-select: none;
}

.insticloud-auth-title {
    color: var(--ic-text);
    font-size: clamp(1.35rem, 4vw, 1.625rem);
    font-weight: 700;
    text-align: center;
    margin: 0 0 0.5rem;
    letter-spacing: -0.025em;
    line-height: 1.25;
}

.insticloud-page-heading {
    color: var(--ic-text);
    font-size: clamp(1.2rem, 3.5vw, 1.45rem);
    font-weight: 700;
    text-align: center;
    margin: 0 0 0.75rem;
    letter-spacing: -0.02em;
}

.insticloud-auth-subtitle,
.insticloud-page-lead {
    color: var(--ic-text-muted);
    font-size: clamp(0.875rem, 2.5vw, 0.9375rem);
    text-align: center;
    margin: 0 0 1.75rem;
    line-height: 1.55;
}

.insticloud-auth-card label {
    display: block;
    color: rgba(255, 255, 255, 0.88);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.4rem;
}

.insticloud-auth-card .form-group {
    margin-bottom: 1.25rem;
}

.insticloud-auth-card .form-group.ic-shake {
    animation: ic-shake 0.4s ease;
}

@keyframes ic-shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

.insticloud-auth-card .form-control {
    background: var(--ic-input-bg);
    border: 1px solid var(--ic-input-border);
    color: var(--ic-input-text);
    border-radius: 12px;
    height: 50px;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    width: 100%;
}

.insticloud-auth-card .form-control:-webkit-autofill,
.insticloud-auth-card .form-control:-webkit-autofill:hover,
.insticloud-auth-card .form-control:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--ic-input-text);
    -webkit-box-shadow: 0 0 0 1000px rgba(37, 99, 235, 0.08) inset;
    transition: background-color 5000s ease-in-out 0s;
    border-color: var(--ic-primary);
}

.insticloud-auth-card .form-control:hover {
    border-color: rgba(var(--ic-primary-rgb), 0.35);
}

.insticloud-auth-card .form-control:focus {
    background: var(--ic-input-bg);
    border-color: var(--ic-primary);
    box-shadow: 0 0 0 3px rgba(var(--ic-primary-rgb), 0.3);
    color: var(--ic-input-text);
    outline: none;
}

.insticloud-auth-card .form-control:focus-visible {
    outline: 2px solid var(--ic-primary);
    outline-offset: 2px;
}

.insticloud-auth-card .form-control.is-invalid {
    border-color: var(--ic-danger);
    box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.2);
}

.insticloud-auth-card .form-control::placeholder {
    color: var(--ic-input-placeholder);
}

.ic-password-wrap {
    position: relative;
}

.ic-password-wrap .form-control {
    padding-right: 3rem;
}

.ic-password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.55);
    padding: 0.35rem;
    cursor: pointer;
    border-radius: 8px;
    line-height: 1;
    transition: color 0.15s ease;
}

.ic-password-toggle:hover,
.ic-password-toggle:focus-visible {
    color: var(--ic-primary);
    outline: none;
}

.ic-caps-warning {
    display: none;
    color: var(--ic-warning);
    font-size: 0.75rem;
    margin-top: 0.35rem;
}

.ic-caps-warning.is-visible {
    display: block;
}

.insticloud-auth-card .help-hint {
    color: var(--ic-text-subtle);
    font-size: 0.75rem;
    margin-top: 0.4rem;
    line-height: 1.4;
}

.insticloud-auth-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.insticloud-auth-card .custom-control-label span {
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.875rem;
}

.insticloud-auth-card .custom-control-input:focus ~ .custom-control-label::before {
    box-shadow: 0 0 0 3px rgba(var(--ic-primary-rgb), 0.35);
}

.insticloud-auth-card .forgot-link,
.insticloud-auth-card .ic-text-link {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.875rem;
    text-decoration: none;
    transition: color 0.15s ease;
}

.insticloud-auth-card .forgot-link:hover,
.insticloud-auth-card .forgot-link:focus-visible,
.insticloud-auth-card .ic-text-link:hover,
.insticloud-auth-card .ic-text-link:focus-visible {
    color: #ffffff;
    text-decoration: underline;
    outline: none;
}

.btn-insticloud-primary {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--ic-primary) 0%, var(--ic-primary-dark) 100%);
    border: none;
    color: #ffffff !important;
    font-weight: 600;
    font-size: 0.9375rem;
    letter-spacing: 0.02em;
    border-radius: 12px;
    height: 50px;
    box-shadow: 0 8px 28px rgba(var(--ic-primary-rgb), 0.38);
    transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}

.btn-insticloud-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(var(--ic-primary-rgb), 0.48);
}

.btn-insticloud-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-insticloud-primary:focus-visible {
    outline: 2px solid #ffffff;
    outline-offset: 3px;
}

.btn-insticloud-primary:disabled,
.btn-insticloud-primary.is-loading {
    opacity: 0.82;
    cursor: wait;
    transform: none;
}

.btn-insticloud-primary .btn-spinner {
    display: none;
    width: 1.125rem;
    height: 1.125rem;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: ic-spin 0.65s linear infinite;
    margin-right: 0.5rem;
    vertical-align: middle;
}

.btn-insticloud-primary.is-loading .btn-spinner {
    display: inline-block;
}

@keyframes ic-spin {
    to { transform: rotate(360deg); }
}

.btn-insticloud-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.35) 10%, transparent 10%);
    transform: scale(10);
    opacity: 0;
    transition: transform 0.5s, opacity 0.8s;
    pointer-events: none;
}

.btn-insticloud-primary:not(:disabled):active::after {
    transform: scale(0);
    opacity: 1;
    transition: 0s;
}

.btn-insticloud-secondary {
    background: transparent;
    border: 1px solid var(--ic-glass-border);
    color: var(--ic-text) !important;
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 12px;
    height: 46px;
    transition: background 0.18s ease, border-color 0.18s ease;
}

.btn-insticloud-secondary:hover {
    background: rgba(var(--ic-primary-rgb), 0.1);
    border-color: rgba(var(--ic-primary-rgb), 0.35);
}

.ic-form-overlay {
    display: none;
}

.insticloud-auth-card .lw-form.lw-form-in-process {
    pointer-events: none;
    opacity: 0.92;
}

.insticloud-auth-footer {
    position: relative;
    z-index: 2;
    margin-top: 1.75rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.38);
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

/* Alerts */
.ic-alert {
    border-radius: 12px;
    padding: 0.875rem 1rem;
    margin-bottom: 1.25rem;
    font-size: 0.875rem;
    line-height: 1.5;
    border: 1px solid transparent;
    animation: ic-fade-in 0.4s ease;
}

.ic-alert-success {
    background: rgba(52, 211, 153, 0.12);
    border-color: rgba(52, 211, 153, 0.35);
    color: #6ee7b7;
}

.ic-alert-error {
    background: rgba(248, 113, 113, 0.12);
    border-color: rgba(248, 113, 113, 0.35);
    color: #fca5a5;
}

.ic-alert-info {
    background: rgba(var(--ic-primary-rgb), 0.12);
    border-color: rgba(var(--ic-primary-rgb), 0.35);
    color: rgba(255, 255, 255, 0.85);
}

/* Success state */
.ic-success-state {
    text-align: center;
    padding: 0.5rem 0 1rem;
    animation: ic-fade-in 0.5s ease;
}

.ic-success-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 1.25rem;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(52, 211, 153, 0.2), rgba(16, 185, 129, 0.35));
    border: 2px solid rgba(52, 211, 153, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #34d399;
    font-size: 2rem;
    box-shadow: 0 8px 32px rgba(52, 211, 153, 0.2);
}

.ic-success-icon.ic-animate-pop {
    animation: ic-pop 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes ic-pop {
    0% { transform: scale(0.5); opacity: 0; }
    70% { transform: scale(1.08); }
    100% { transform: scale(1); opacity: 1; }
}

/* Password strength */
.ic-strength-meter {
    margin-top: 0.5rem;
}

.ic-strength-bar {
    height: 4px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.12);
    overflow: hidden;
    margin-bottom: 0.35rem;
}

.ic-strength-fill {
    height: 100%;
    width: 0;
    border-radius: 4px;
    transition: width 0.3s ease, background 0.3s ease;
}

.ic-strength-label {
    font-size: 0.75rem;
    color: var(--ic-text-subtle);
}

.ic-match-label {
    font-size: 0.75rem;
    margin-top: 0.35rem;
    color: var(--ic-text-subtle);
}

.ic-match-label.is-match { color: var(--ic-success); }
.ic-match-label.is-mismatch { color: var(--ic-danger); }

/* Error pages */
.ic-error-shell .insticloud-auth-card-wrap {
    --ic-card-max: 520px;
}

.ic-error-illustration {
    width: 120px;
    height: 120px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(var(--ic-primary-rgb), 0.15), rgba(var(--ic-primary-rgb), 0.05));
    border: 1px solid rgba(var(--ic-primary-rgb), 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--ic-primary);
}

.ic-error-code {
    font-size: clamp(3rem, 12vw, 4.5rem);
    font-weight: 800;
    color: var(--ic-text);
    text-align: center;
    line-height: 1;
    margin: 0 0 0.5rem;
    letter-spacing: -0.04em;
}

.ic-error-title {
    font-size: clamp(1.25rem, 4vw, 1.5rem);
    font-weight: 700;
    color: var(--ic-text);
    text-align: center;
    margin: 0 0 0.75rem;
}

.ic-error-message {
    color: var(--ic-text-muted);
    text-align: center;
    font-size: 0.9375rem;
    line-height: 1.55;
    margin: 0 0 1.75rem;
}

.ic-error-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.ic-back-link {
    text-align: center;
    margin-top: 1rem;
}

@media (max-width: 400px) {
    .insticloud-brand-row { gap: 0.75rem; }
    .insticloud-brand-logo--primary { width: 44px; height: 44px; }
    .insticloud-brand-logo--secondary { width: 38px; height: 38px; }
}

@media (prefers-reduced-motion: reduce) {
    #networkCanvas { display: none; }
    .insticloud-auth-card-wrap.ic-animate-in,
    .insticloud-brand-row.ic-fade-in,
    .ic-success-state,
    .ic-alert,
    .insticloud-auth-card .form-group.ic-shake {
        animation: none;
    }
    .btn-insticloud-primary,
    .insticloud-auth-card .form-control,
    .ic-strength-fill {
        transition: none;
    }
}