/* ============================================
   Sign-In — Dark neon theme (port of Flutter)
   Colors: bg #0C0E15, accent #00E0FF, muted #8C90A1
   ============================================ */

:root {
    --si-bg: #0C0E15;
    --si-card-bg: transparent;
    --si-card-shadow: none;
    --si-text: #ffffff;
    --si-text-secondary: #8C90A1;
    --si-text-muted: #5a5d6a;
    --si-accent: #00E0FF;
    --si-accent-hover: #33e8ff;
    --si-accent-active: #00c4de;
    --si-input-bg: #141722;
    --si-input-border: #2A2E3D;
    --si-input-focus-border: #00E0FF;
    --si-input-focus-ring: rgba(0, 224, 255, 0.15);
    --si-error-bg: rgba(255, 82, 82, 0.08);
    --si-error-border: rgba(255, 82, 82, 0.25);
    --si-error-text: #ff8a8a;
    --si-radius: 12px;
    --si-radius-sm: 8px;
}

/* Force dark theme always — ignore Bootstrap theme toggle */
[data-bs-theme="dark"] {
    --si-bg: #0C0E15;
    --si-card-bg: transparent;
    --si-card-shadow: none;
    --si-text: #ffffff;
    --si-text-secondary: #8C90A1;
    --si-text-muted: #5a5d6a;
    --si-accent: #00E0FF;
    --si-accent-hover: #33e8ff;
    --si-accent-active: #00c4de;
    --si-input-bg: #141722;
    --si-input-border: #2A2E3D;
    --si-input-focus-border: #00E0FF;
    --si-input-focus-ring: rgba(0, 224, 255, 0.15);
    --si-error-bg: rgba(255, 82, 82, 0.08);
    --si-error-border: rgba(255, 82, 82, 0.25);
    --si-error-text: #ff8a8a;
}

/* ---- Layout ---- */
.si-root {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 24px 16px;
    background: var(--si-bg);
    position: relative;
    overflow-x: hidden;
    overflow-y: auto;
}

/* Radial glow behind form */
.si-root::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    top: 15%;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 224, 255, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.si-card {
    width: 100%;
    max-width: 400px;
    background: var(--si-card-bg);
    border-radius: var(--si-radius);
    box-shadow: var(--si-card-shadow);
    padding: 36px 28px 32px;
    position: relative;
    z-index: 1;
}

@media (max-width: 480px) {
    .si-card {
        padding: 16px 0;
    }
    .si-root {
        justify-content: flex-start;
        padding-top: 4vh;
    }
}

@media (max-height: 600px) {
    .si-root {
        justify-content: flex-start;
        padding-top: 8px;
    }
    .si-logo {
        margin-bottom: 12px;
    }
    .si-logo-circle {
        width: 56px;
        height: 56px;
    }
    .si-logo-icon {
        width: 28px;
        height: 28px;
    }
    .si-subtitle {
        margin: 4px 0 12px;
    }
}

.si-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* ---- Pulsing lock icon ---- */
.si-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.si-logo-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(0, 224, 255, 0.3);
    animation: si-glow-pulse 2.5s ease-in-out infinite alternate;
}

@keyframes si-glow-pulse {
    0%   { box-shadow: 0 0 8px rgba(0, 224, 255, 0.15); }
    100% { box-shadow: 0 0 20px rgba(0, 224, 255, 0.25), 0 0 40px rgba(0, 224, 255, 0.08); }
}

.si-logo-icon {
    width: 36px;
    height: 36px;
    color: var(--si-accent);
}

/* ---- Title ---- */
.si-title {
    font-size: 28px;
    font-weight: 900;
    text-align: center;
    margin: 0;
    letter-spacing: 2px;
    background: linear-gradient(180deg, #ffffff 30%, #8C90A1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.si-subtitle {
    text-align: center;
    color: var(--si-text-secondary);
    letter-spacing: 1.5px;
    font-size: 11px;
    font-family: 'Courier New', monospace;
    margin: 6px 0 20px;
}

/* ---- Error ---- */
.si-error {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 12px 14px;
    border-radius: var(--si-radius-sm);
    background: var(--si-error-bg);
    border: 1px solid var(--si-error-border);
    color: var(--si-error-text);
    font-size: 0.8rem;
    line-height: 1.4;
}

.si-error-icon {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 1px;
    color: var(--si-error-text);
}

.si-validation-errors:empty {
    display: none;
}

.si-validation-errors {
    color: var(--si-error-text);
    font-size: 0.8rem;
}

/* ---- Fields ---- */
.si-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: relative;
}

.si-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--si-text-secondary);
}

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

.si-input-icon {
    position: absolute;
    left: 14px;
    width: 20px;
    height: 20px;
    color: var(--si-accent);
    pointer-events: none;
    z-index: 1;
}

.si-input {
    width: 100%;
    padding: 14px 14px 14px 44px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--si-text);
    background: var(--si-input-bg);
    border: 1px solid var(--si-input-border);
    border-radius: var(--si-radius-sm);
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
    -webkit-appearance: none;
    appearance: none;
    box-sizing: border-box;
}

.si-input::placeholder {
    color: var(--si-text-muted);
}

.si-input:focus {
    border-color: var(--si-input-focus-border);
    box-shadow: 0 0 0 3px var(--si-input-focus-ring);
}

/* ---- Remember me ---- */
.si-remember {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--si-text-secondary);
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
    margin-top: 4px;
}

.si-checkbox {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    accent-color: var(--si-accent);
    cursor: pointer;
}

/* ---- Submit button — neon glow ---- */
.si-submit {
    width: 100%;
    padding: 14px 20px;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 1.2px;
    color: var(--si-bg);
    background: var(--si-accent);
    border: none;
    border-radius: var(--si-radius-sm);
    cursor: pointer;
    transition: background 0.15s, transform 0.1s, box-shadow 0.3s;
    -webkit-appearance: none;
    appearance: none;
    position: relative;
    margin-top: 12px;
    box-shadow: 0 0 12px rgba(0, 224, 255, 0.3), 0 0 24px rgba(0, 224, 255, 0.1);
}

.si-submit:hover {
    background: var(--si-accent-hover);
    box-shadow: 0 0 16px rgba(0, 224, 255, 0.4), 0 0 32px rgba(0, 224, 255, 0.15);
}

.si-submit:active {
    background: var(--si-accent-active);
    transform: scale(0.98);
}

.si-submit:disabled {
    background: rgba(0, 224, 255, 0.4);
    color: rgba(12, 14, 21, 0.5);
    box-shadow: none;
    cursor: not-allowed;
}

.si-submit[data-kt-indicator="on"] .indicator-label {
    display: none;
}

.si-submit .indicator-progress {
    display: none;
}

.si-submit[data-kt-indicator="on"] .indicator-progress {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.si-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(12, 14, 21, 0.3);
    border-top-color: var(--si-bg);
    border-radius: 50%;
    animation: si-spin 0.6s linear infinite;
}

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

/* ---- Footer ---- */
.si-footer {
    margin-top: 32px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.si-footer-text {
    color: var(--si-text-secondary);
    letter-spacing: 1.5px;
    font-size: 10px;
    font-family: 'Courier New', monospace;
}

/* ---- FormValidation plugin ---- */
.fv-plugins-message-container {
    margin-top: 4px;
    font-size: 0.8rem;
    color: var(--si-error-text);
}