/* =========================================================
   PB-OS (Prakriti Bites Business Operating System)
   File: assets/css/login.css
   Purpose: Login page styling (Modern ERP theme)
   ========================================================= */

/* ---------------------------------------------------------
   1. CSS Variables
   --------------------------------------------------------- */
:root {
    --pb-primary: #1e6f5c;
    --pb-primary-dark: #14503f;
    --pb-primary-light: #2f9e82;
    --pb-accent: #f5a623;

    --pb-bg-gradient-start: #eef5f2;
    --pb-bg-gradient-end: #dceee6;

    --pb-card-bg: #ffffff;
    --pb-text-dark: #1f2a2e;
    --pb-text-muted: #6c7a78;
    --pb-border-color: #e1e8e6;
    --pb-input-bg: #f9fbfa;

    --pb-danger: #d9534f;
    --pb-danger-bg: #fdecea;

    --pb-success: #2f9e82;

    --pb-radius-lg: 18px;
    --pb-radius-md: 10px;
    --pb-radius-sm: 6px;

    --pb-shadow-card: 0 20px 45px rgba(20, 60, 50, 0.12);
    --pb-shadow-btn: 0 8px 20px rgba(30, 111, 92, 0.35);

    --pb-transition-fast: 0.18s ease-in-out;
    --pb-transition-base: 0.3s ease-in-out;

    --pb-font-base: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* ---------------------------------------------------------
   2. Base / Reset
   --------------------------------------------------------- */
* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

.pb-login-body {
    margin: 0;
    padding: 0;
    font-family: var(--pb-font-base);
    color: var(--pb-text-dark);
    /* Modern Background Image with deep green/teal overlay */
    background: linear-gradient(rgba(18, 76, 62, 0.75), rgba(30, 111, 92, 0.65)), url('https://images.unsplash.com/photo-1497366216548-37526070297c?auto=format&fit=crop&w=1920&q=80') no-repeat center center fixed;
    background-size: cover;
}

/* ---------------------------------------------------------
   3. Layout Wrapper
   --------------------------------------------------------- */
.pb-login-wrapper {
    min-height: 100vh;
    padding: 24px 12px;
}

/* ---------------------------------------------------------
   4. Login Card (Glassmorphism)
   --------------------------------------------------------- */
.pb-login-card {
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--pb-radius-lg);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    transition: transform var(--pb-transition-base), box-shadow var(--pb-transition-base);
}

.pb-login-card:hover {
    box-shadow: 0 24px 55px rgba(20, 60, 50, 0.16);
}

/* ---------------------------------------------------------
   5. Logo
   --------------------------------------------------------- */
.pb-login-logo {
    width: 64px;
    height: 64px;
    object-fit: contain;
    border-radius: var(--pb-radius-sm);
}

/* ---------------------------------------------------------
   6. Heading / Sub Heading
   --------------------------------------------------------- */
.pb-login-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--pb-primary-dark);
}

.pb-login-subtitle {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--pb-text-muted);
}

/* ---------------------------------------------------------
   7. Form Labels
   --------------------------------------------------------- */
.pb-login-card .form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--pb-text-dark);
    margin-bottom: 6px;
}

/* ---------------------------------------------------------
   8. Input Boxes
   --------------------------------------------------------- */
.pb-login-card .input-group-text {
    background-color: var(--pb-input-bg);
    border: 1px solid var(--pb-border-color);
    color: var(--pb-primary);
    border-right: none;
}

.pb-login-card .form-control {
    background-color: var(--pb-input-bg);
    border: 1px solid var(--pb-border-color);
    border-left: none;
    padding: 0.65rem 0.75rem;
    font-size: 0.95rem;
    color: var(--pb-text-dark);
    transition: border-color var(--pb-transition-fast), box-shadow var(--pb-transition-fast), background-color var(--pb-transition-fast);
}

.pb-login-card .input-group:focus-within .input-group-text,
.pb-login-card .input-group:focus-within .form-control {
    border-color: var(--pb-primary-light);
    background-color: #ffffff;
}

.pb-login-card .form-control:focus {
    box-shadow: 0 0 0 0.2rem rgba(47, 158, 130, 0.18);
    outline: none;
}

.pb-login-card .form-control::placeholder {
    color: #a7b3b1;
    font-size: 0.88rem;
}

/* ---------------------------------------------------------
   9. Password Eye Icon
   --------------------------------------------------------- */
.pb-password-toggle {
    background-color: var(--pb-input-bg);
    border: 1px solid var(--pb-border-color);
    border-left: none;
    cursor: pointer;
    color: var(--pb-text-muted);
    transition: color var(--pb-transition-fast);
}

.pb-password-toggle:hover {
    color: var(--pb-primary);
}

.pb-password-toggle i {
    pointer-events: none;
}

/* ---------------------------------------------------------
   10. Remember Me
   --------------------------------------------------------- */
.form-check-input {
    cursor: pointer;
    border-color: var(--pb-border-color);
}

.form-check-input:checked {
    background-color: var(--pb-primary);
    border-color: var(--pb-primary);
}

.form-check-input:focus {
    box-shadow: 0 0 0 0.15rem rgba(47, 158, 130, 0.25);
}

.form-check-label {
    font-size: 0.85rem;
    color: var(--pb-text-muted);
    cursor: pointer;
}

/* ---------------------------------------------------------
   11. Forgot Password
   --------------------------------------------------------- */
.pb-forgot-link {
    color: var(--pb-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--pb-transition-fast);
}

.pb-forgot-link:hover {
    color: var(--pb-primary-dark);
    text-decoration: underline;
}

/* ---------------------------------------------------------
   12. Login Button
   --------------------------------------------------------- */
.pb-login-btn {
    background: linear-gradient(135deg, var(--pb-primary) 0%, var(--pb-primary-light) 100%);
    border: none;
    border-radius: var(--pb-radius-md);
    padding: 0.7rem 1rem;
    font-weight: 600;
    font-size: 0.98rem;
    letter-spacing: 0.3px;
    box-shadow: var(--pb-shadow-btn);
    transition: transform var(--pb-transition-fast), box-shadow var(--pb-transition-fast), opacity var(--pb-transition-fast);
}

.pb-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(30, 111, 92, 0.42);
    background: linear-gradient(135deg, var(--pb-primary-dark) 0%, var(--pb-primary) 100%);
}

.pb-login-btn:active {
    transform: translateY(0);
}

.pb-login-btn:focus {
    box-shadow: 0 0 0 0.2rem rgba(47, 158, 130, 0.3);
}

/* ---------------------------------------------------------
   13. Loading Button State
   --------------------------------------------------------- */
.pb-login-btn.pb-btn-loading {
    pointer-events: none;
    opacity: 0.85;
    position: relative;
    color: transparent;
}

.pb-login-btn.pb-btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 18px;
    height: 18px;
    margin-top: -9px;
    margin-left: -9px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: pb-spin 0.7s linear infinite;
}

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

/* ---------------------------------------------------------
   14. Alert Messages
   --------------------------------------------------------- */
.pb-login-card .alert-danger {
    background-color: var(--pb-danger-bg);
    color: var(--pb-danger);
    border: 1px solid rgba(217, 83, 79, 0.25);
    border-radius: var(--pb-radius-sm);
}

/* ---------------------------------------------------------
   15. Footer
   --------------------------------------------------------- */
.pb-login-footer {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9) !important;
    letter-spacing: 0.2px;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

/* ---------------------------------------------------------
   16. Responsive Breakpoints
   --------------------------------------------------------- */

/* Tablet */
@media (max-width: 991.98px) {
    .pb-login-card {
        border-radius: var(--pb-radius-md);
    }

    .pb-login-title {
        font-size: 1.6rem;
    }
}

/* Mobile */
@media (max-width: 575.98px) {
    .pb-login-wrapper {
        padding: 16px 10px;
    }

    .pb-login-card .card-body {
        padding: 1.75rem 1.25rem !important;
    }

    .pb-login-logo {
        width: 52px;
        height: 52px;
    }

    .pb-login-title {
        font-size: 1.4rem;
    }

    .pb-login-subtitle {
        font-size: 0.8rem;
    }

    .pb-login-btn {
        font-size: 0.92rem;
    }
}