@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --primary: #4F46E5;
    /* Indigo 600 */
    --primary-hover: #4338CA;
    /* Indigo 700 */
    --primary-light: #EEF2FF;
    /* Indigo 50 */
    --success: #10B981;
    /* Emerald 500 */
    --danger: #EF4444;
    /* Red 500 */

    --bg-main: #e2e7f9;
    
    --bg-surface: #FFFFFF;

    --text-main: #111827;
    /* Gray 900 */
    --text-muted: #6B7280;
    /* Gray 500 */
    --text-light: #9CA3AF;
    /* Gray 400 */

    --border-color: #E5E7EB;
    /* Gray 200 */

    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    color: var(--text-main);
}

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

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

input[type="date"] {
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 6px;
    box-sizing: border-box;
    font-family: inherit;
}

input[type="time"] {
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 6px;
    box-sizing: border-box;
    font-family: inherit;
}

/* =========================================
   Authentication Pages
   ========================================= */
.auth-page {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
    padding: 1rem;
}

.auth-container {
    background: var(--bg-surface);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    text-align: center;
    animation: slideUp 0.4s ease-out forwards;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-container h2 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.auth-container p.subtitle {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.auth-container .error {
    background-color: #FEF2F2;
    color: var(--danger);
    padding: 0.75rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    border: 1px solid #FCA5A5;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

input[type="text"],
input[type="email"],
input[type="password"],
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: #fff;
    color: var(--text-main);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    font-weight: 500;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background-color: #fff;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: var(--bg-main);
}

/* =========================================
   Application Layout (Dashboard)
   ========================================= */
.app-layout {
    display: flex;
    min-height: 100vh;
    background-color: var(--bg-main);
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 40;
    transition: transform 0.3s ease;
}

.sidebar-header {
    height: 70px;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-brand img {
    /*height: 40px;      /* controls size relative to 70px header */
    /*width: auto;       /* keeps aspect ratio */
    max-width: 85%;   /* prevents overflow */
    object-fit: contain;
}

.nav-links {
    padding: 1.5rem 1rem;
    flex: 1;
    list-style: none;
    background-color: #1a1e37;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    border-radius: var(--radius-md);
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #e8eef9
}

.nav-item a:hover {
    background-color: var(--bg-main);
    color: var(--text-main);
}

.nav-item.active a {
    background-color: var(--primary-light);
    color: var(--primary);
}

.nav-item svg {
    width: 20px;
    height: 20px;
}

/* Main Content Area */
.main-wrapper {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top Header */
.top-header {
    height: 70px;
    background-color: #1a1e37;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 30;
}

.header-search {
    position: relative;
    max-width: 400px;
    width: 100%;
}

.header-search input {
    width: 100%;
    padding-left: 2.5rem;
    border-radius: 9999px;
    background-color: var(--bg-main);
    border-color: transparent;
}

.header-search input:focus {
    background-color: #fff;
    border-color: var(--primary);
}

.header-search svg {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    width: 18px;
    height: 18px;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    font-size: 0.875rem;
    color: white;
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
    overflow: hidden;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-edit-btn:hover {
    transform: scale(1.1);
    background-color: var(--primary-hover) !important;
}

.logout-btn {
    color: var(--primary-light);
    font-size: 0.875rem;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    display: inline-flex;
}

.logout-btn:hover {
    background-color: #FEF2F2;
    color: var(--danger);
}

/* Content Area */
.content-area {
    padding: 2rem;
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-title {
    font-size: 1.5rem;
    /*color: var(--text-main);*/
    color: #1b2a4b;
}

/* Data Table / List */
.data-container {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.contact-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.contact-card:hover {
    box-shadow: var(--shadow-md);
    border-color: #D1D5DB;
    transform: translateY(-2px);
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--primary);
    opacity: 0;
    transition: var(--transition);
}

.contact-card:hover::before {
    opacity: 1;
}

.contact-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #7C3AED, #ec4899);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.contact-info h3 {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
    color: var(--text-main);
}

.contact-detail {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.contact-detail svg {
    width: 16px;
    height: 16px;
    color: var(--text-light);
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    color: var(--text-light);
    margin-bottom: 1rem;
}

/* Build Skeleton */
.skeleton {
    animation: pulse 1.5s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: .5;
    }
}

.skeleton-card {
    height: 150px;
    background-color: var(--border-color);
    border-radius: var(--radius-lg);
}

/* =========================================
   Modals
   ========================================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(17, 24, 39, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-surface);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95) translateY(20px);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    opacity: 0;
}

.modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    background: var(--bg-surface);
    z-index: 10;
}

.modal-header h3 {
    font-size: 1.25rem;
    margin: 0;
}

.close-modal {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius-md);
    display: flex;
}

.close-modal:hover {
    background-color: var(--bg-main);
    color: var(--text-main);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    background-color: var(--bg-main);
}

/* Forms & Inputs */
.phone-group {
    display: flex;
    gap: 0.5rem;
}

.phone-group input {
    flex: 1;
}

.phone-group select {
    width: 130px;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: #fff;
    font-family: inherit;
    font-size: 0.875rem;
    outline: none;
    transition: var(--transition);
}

.phone-group select:focus {
    border-color: var(--primary);
}

/* =========================================
   Toasts
   ========================================= */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    background: var(--bg-surface);
    color: var(--text-main);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-left: 4px solid var(--primary);
    transform: translateX(120%);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    min-width: 280px;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--danger);
}

/* Timeline Actions */
.tl-actions {
    opacity: 0;
    transition: opacity 0.2s;
    position: relative;
    z-index: 10;
}

.tl-item:hover .tl-actions {
    opacity: 1;
}

.tl-edit-btn:hover,
.tl-delete-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

.tl-item {
    overflow: visible !important;
}

.form-control-modal {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.9rem;
}

.form-control-modal:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

/* =========================================
   Responsive Adjustments
   ========================================= */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
}

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: var(--shadow-xl);
    }

    .main-wrapper {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
        margin-right: 1rem;
    }

    .top-header {
        padding: 0 1rem;
    }

    .header-search {
        display: none;
    }
}

@media (max-width: 640px) {
    .content-area {
        padding: 1rem;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .page-header .btn-primary {
        width: 100%;
    }
}