/**
 * KARKER-ERP Main Stylesheet
 * Colors: Primary #EF4136, Secondary #000000, Light #FFFFFF
 */

/* ============================================
   CSS Variables
============================================ */
:root {
    --primary-color: #EF4136;
    --primary-hover: #d63529;
    --primary-light: rgba(239, 65, 54, 0.1);
    --secondary-color: #000000;
    --light-color: #FFFFFF;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --sidebar-width: 260px;
    --navbar-height: 60px;
    --transition-speed: 0.3s;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --box-shadow-lg: 0 5px 25px rgba(0, 0, 0, 0.15);
}

/* ============================================
   Reset & Base Styles
============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-100);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed);
}

a:hover {
    color: var(--primary-hover);
}

img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   Typography
============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

/* ============================================
   Utility Classes
============================================ */
.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-info { color: var(--info-color) !important; }
.text-muted { color: var(--gray-600) !important; }
.text-white { color: var(--light-color) !important; }

.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }
.bg-light { background-color: var(--gray-100) !important; }
.bg-white { background-color: var(--light-color) !important; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 2rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 2rem; }

/* ============================================
   Buttons
============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    transition: all var(--transition-speed);
}

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.btn-primary {
    color: var(--light-color);
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-secondary {
    color: var(--light-color);
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-secondary:hover {
    background-color: var(--gray-800);
    border-color: var(--gray-800);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background-color: transparent;
}

.btn-outline-primary:hover {
    color: var(--light-color);
    background-color: var(--primary-color);
}

.btn-outline-secondary {
    color: var(--secondary-color);
    border-color: var(--secondary-color);
    background-color: transparent;
}

.btn-outline-secondary:hover {
    color: var(--light-color);
    background-color: var(--secondary-color);
}

.btn-success {
    color: var(--light-color);
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.btn-danger {
    color: var(--light-color);
    background-color: var(--danger-color);
    border-color: var(--danger-color);
}

.btn-warning {
    color: var(--secondary-color);
    background-color: var(--warning-color);
    border-color: var(--warning-color);
}

.btn-info {
    color: var(--light-color);
    background-color: var(--info-color);
    border-color: var(--info-color);
}

.btn-light {
    color: var(--secondary-color);
    background-color: var(--gray-200);
    border-color: var(--gray-300);
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.1rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* ============================================
   Forms
============================================ */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--gray-800);
    background-color: var(--light-color);
    background-clip: padding-box;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.form-control:focus {
    color: var(--gray-800);
    background-color: var(--light-color);
    border-color: var(--primary-color);
    outline: 0;
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-control:disabled,
.form-control[readonly] {
    background-color: var(--gray-200);
    opacity: 1;
}

.form-control::placeholder {
    color: var(--gray-500);
    opacity: 1;
}

.form-control.is-invalid {
    border-color: var(--danger-color);
}

.form-control.is-valid {
    border-color: var(--success-color);
}

.invalid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.85rem;
    color: var(--danger-color);
}

.form-text {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.85rem;
    color: var(--gray-600);
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    padding-right: 2.5rem;
}

/* ============================================
   Cards
============================================ */
.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: var(--light-color);
    background-clip: border-box;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.card-header {
    padding: 1rem 1.25rem;
    margin-bottom: 0;
    background-color: var(--light-color);
    border-bottom: 1px solid var(--gray-200);
}

.card-header h5 {
    margin-bottom: 0;
}

.card-body {
    flex: 1 1 auto;
    padding: 1.25rem;
}

.card-footer {
    padding: 1rem 1.25rem;
    background-color: var(--gray-100);
    border-top: 1px solid var(--gray-200);
}

/* ============================================
   Alerts
============================================ */
.alert {
    position: relative;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeeba;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

/* ============================================
   Tables
============================================ */
.table {
    width: 100%;
    margin-bottom: 1rem;
    color: var(--gray-800);
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.75rem;
    vertical-align: top;
    border-top: 1px solid var(--gray-200);
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid var(--gray-300);
    background-color: var(--gray-100);
    font-weight: 600;
    color: var(--gray-700);
}

.table tbody tr:hover {
    background-color: var(--gray-100);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: var(--gray-100);
}

/* ============================================
   Badges
============================================ */
.badge {
    display: inline-block;
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    font-weight: 600;
    line-height: 1;
    color: var(--light-color);
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 50rem;
}

.badge-primary { background-color: var(--primary-color); }
.badge-secondary { background-color: var(--secondary-color); }
.badge-success { background-color: var(--success-color); }
.badge-danger { background-color: var(--danger-color); }
.badge-warning { background-color: var(--warning-color); color: var(--secondary-color); }
.badge-info { background-color: var(--info-color); }

/* ============================================
   Login Page Specific Styles
============================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--secondary-color);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.login-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
}

.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    padding: 2rem;
}

.login-card {
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    overflow: hidden;
}

.login-header {
    background-color: var(--primary-color);
    padding: 2rem;
    text-align: center;
}

.login-logo {
    max-width: 150px;
    height: auto;
    margin-bottom: 1rem;
}

.login-header h1 {
    color: var(--light-color);
    font-size: 1.5rem;
    margin: 0;
}

.login-header p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0.5rem 0 0;
    font-size: 0.9rem;
}

.login-body {
    padding: 2rem;
}

.login-body .form-group {
    margin-bottom: 1.25rem;
}

.login-body .form-control {
    padding: 0.75rem 1rem;
    font-size: 1rem;
}

.login-body .btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    margin-top: 0.5rem;
}

.login-footer {
    text-align: center;
    padding: 1rem 2rem 2rem;
}

.login-footer a {
    color: var(--gray-600);
    font-size: 0.9rem;
}

.login-footer a:hover {
    color: var(--primary-color);
}

.password-toggle {
    position: relative;
}

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

.password-toggle .toggle-btn {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    padding: 0.25rem;
}

.password-toggle .toggle-btn:hover {
    color: var(--gray-700);
}

/* ============================================
   Spinner / Loading
============================================ */
.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spinner 0.75s linear infinite;
}

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

.btn .spinner {
    margin-right: 0.5rem;
}

/* ============================================
   Responsive - Mobile Friendly Login
============================================ */
@media (max-width: 768px) {
    /* Mobile login page - clean white background */
    .login-page {
        background: #f5f5f5 !important;
        background-image: none !important;
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 20px;
    }

    .login-page::before {
        display: none !important;
    }

    /* Container centers the box */
    .login-container {
        width: 100%;
        max-width: 400px;
        padding: 0;
    }

    /* Login card/box */
    .login-card {
        background: #ffffff;
        border-radius: 12px;
        box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
        overflow: hidden;
    }

    /* Header with logo */
    .login-header {
        background-color: var(--primary-color);
        padding: 25px 20px;
        text-align: center;
    }

    .login-logo {
        width: 80px;
        height: 80px;
        object-fit: contain;
        background: white;
        padding: 10px;
        border-radius: 50%;
        margin-bottom: 15px;
    }

    .login-header h1 {
        color: #ffffff;
        font-size: 22px;
        margin: 0 0 5px 0;
    }

    .login-header p {
        color: rgba(255, 255, 255, 0.85);
        font-size: 13px;
        margin: 0;
    }

    /* Form body */
    .login-body {
        padding: 25px 20px;
    }

    .login-body .form-group {
        margin-bottom: 20px;
    }

    .login-body .form-label {
        display: block;
        font-size: 14px;
        font-weight: 600;
        color: #333;
        margin-bottom: 8px;
    }

    .login-body .form-control {
        width: 100%;
        padding: 12px 15px;
        font-size: 16px;
        border: 1px solid #ddd;
        border-radius: 8px;
        background: #fff;
        box-sizing: border-box;
    }

    .login-body .form-control:focus {
        border-color: var(--primary-color);
        outline: none;
        box-shadow: 0 0 0 3px rgba(239, 65, 54, 0.1);
    }

    .login-body .form-control::placeholder {
        color: #999;
    }

    /* Password toggle */
    .password-toggle {
        position: relative;
    }

    .password-toggle .form-control {
        padding-right: 45px;
    }

    .password-toggle .toggle-btn {
        position: absolute;
        right: 12px;
        top: 50%;
        transform: translateY(-50%);
        background: none;
        border: none;
        color: #666;
        padding: 5px;
        cursor: pointer;
    }

    /* Login button */
    .login-body .btn {
        width: 100%;
        padding: 14px;
        font-size: 16px;
        font-weight: 600;
        border-radius: 8px;
        margin-top: 10px;
    }

    /* Footer */
    .login-footer {
        padding: 20px;
        text-align: center;
        background: #f9f9f9;
        border-top: 1px solid #eee;
    }

    .login-footer a {
        color: #666;
        font-size: 14px;
        text-decoration: none;
    }

    .login-footer > div {
        margin-top: 15px !important;
        padding-top: 15px !important;
        border-top: 1px solid #eee !important;
    }

    /* Hide copyright on mobile */
    .login-container > p {
        display: none;
    }

    /* Alerts */
    .login-body .alert {
        margin-bottom: 20px;
        padding: 12px 15px;
        border-radius: 8px;
        font-size: 14px;
    }
}