/* Google Fonts - Plus Jakarta Sans */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    /* Brand Colors */
    --primary: #4318FF;
    --primary-light: #F4F7FE;
    --primary-dark: #2B3674;
    --secondary: #A3AED0;

    /* UI Colors */
    --background: #F4F7FE;
    --surface: #FFFFFF;
    --surface-alt: #F8F9FA;

    /* Text Colors */
    --text-main: #2B3674;
    --text-secondary: #A3AED0;
    --text-white: #FFFFFF;

    /* Status Colors */
    --success: #05CD99;
    --warning: #FFB547;
    --danger: #EE5D50;
    --info: #11CDEF;

    /* Borders & Shadows */
    --border: #E0E5F2;
    --shadow-sm: 0px 2px 4px rgba(112, 144, 176, 0.08);
    --shadow-md: 0px 8px 16px rgba(112, 144, 176, 0.12);
    --shadow-lg: 0px 18px 40px rgba(112, 144, 176, 0.12);

    /* Spacing */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 20px;
}

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

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--background);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.2s;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
}

/* === Layout Utilities === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-1 {
    gap: 0.5rem;
}

.gap-2 {
    gap: 1rem;
}

.gap-4 {
    gap: 2rem;
}

.w-full {
    width: 100%;
}

.h-screen {
    height: 100vh;
}

.hidden {
    display: none !important;
}

/* === Typography === */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-main);
    font-weight: 700;
}

h1 {
    font-size: 2.5rem;
    line-height: 1.2;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-xs {
    font-size: 0.75rem;
}

.text-secondary {
    color: var(--text-secondary);
}

.text-primary {
    color: var(--primary);
}

/* === Components === */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    outline: none;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 10px rgba(67, 24, 255, 0.2);
}

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

.btn-secondary {
    background-color: var(--surface);
    color: var(--text-main);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background-color: var(--surface-alt);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

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

/* Cards */
.card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

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

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-main);
    font-size: 0.95rem;
    transition: all 0.2s;
}

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 24, 255, 0.1);
    outline: none;
}

/* === Auth Pages (Login/Register) === */
.auth-layout {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top left, #F4F7FE, #FFFFFF);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    padding: 3rem;
    text-align: center;
}

.auth-header {
    margin-bottom: 2rem;
}

.auth-logo {
    width: 60px;
    height: 60px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

/* === Dashboard Layout === */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 10;
}

.sidebar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
    padding-left: 0.5rem;
}

.brand-icon {
    color: var(--primary);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    color: var(--secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-link.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(67, 24, 255, 0.3);
}

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

/* Main Content */
.main-content {
    margin-left: 280px;
    flex: 1;
    padding: 2rem;
    background: var(--background);
}

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

.page-title {
    font-size: 0.875rem;
    color: var(--secondary);
    margin-bottom: 0.25rem;
}

.page-heading {
    font-size: 2rem;
    color: var(--text-main);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--surface);
    padding: 0.5rem 1rem;
    border-radius: 30px;
    box-shadow: var(--shadow-sm);
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #4318FF, #868CFF);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

/* === Landing Page === */
.hero-section {
    padding: 8rem 0 6rem;
    text-align: center;
    background: linear-gradient(180deg, #F4F7FE 0%, #FFFFFF 100%);
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, #2B3674 0%, #4318FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--secondary);
    max-width: 600px;
    margin: 0 auto 3rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 4rem 0;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
}

/* === Admin Table === */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.admin-table th,
.admin-table td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.admin-table th {
    background: var(--surface-alt);
    color: var(--secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tr:hover {
    background: var(--primary-light);
}

/* QR Code Section */
.qr-container {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    max-width: 400px;
    margin: 0 auto;
}

.qr-placeholder {
    width: 264px;
    height: 264px;
    background: var(--surface-alt);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

/* Chat UI Overrides for Light Theme */
.chat-window {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    display: flex;
    height: 600px;
}

.chat-list {
    width: 300px;
    border-right: 1px solid var(--border);
    background: var(--surface-alt);
}

.chat-view {
    flex: 1;
    background: #e5ddd5;
    /* WhatsApp default bg or custom */
    background: url('https://user-images.githubusercontent.com/15075759/28719144-86dc0f70-73b1-11e7-911d-60d70fcded21.png');
    display: flex;
    flex-direction: column;
}

.message-bubble {
    max-width: 70%;
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    margin-bottom: 0.5rem;
    position: relative;
    font-size: 0.95rem;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
}

.message-bubble.received {
    background: white;
    border-top-left-radius: 0;
    align-self: flex-start;
}

.message-bubble.sent {
    background: #dcf8c6;
    border-top-right-radius: 0;
    align-self: flex-end;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 5px;
}

.status-dot.connected {
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
}

.status-dot.disconnected {
    background: var(--danger);
}

.status-dot.waiting {
    background: var(--warning);
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }

    100% {
        opacity: 1;
    }
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1000;
    animation: slideIn 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes slideIn {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

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