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

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --success-color: #10b981;
    --success-hover: #059669;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;

    --bg-color: #f3f4f6;
    --card-bg: #ffffff;
    --text-main: #111827;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;

    --radius: 12px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

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

/* Layout */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.header {
    background: var(--card-bg);
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

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

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

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

.btn-success:hover {
    background: var(--success-hover);
}

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

.btn-secondary:hover {
    background: #f9fafb;
    border-color: #d1d5db;
}

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

.btn-danger:hover {
    background: #dc2626;
}

.btn-small {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

/* Stats Row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card h3 {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.stat-card .number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.2;
}

/* Sections */
.section {
    background: transparent;
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-badge {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

/* Follow-up Cards */
.followup-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.followup-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
}

.followup-card.hot::before {
    background: var(--danger-color);
}

.followup-card.warm::before {
    background: var(--warning-color);
}

.followup-card.cold::before {
    background: var(--info-color);
}

.followup-card.lifecycle::before {
    background: var(--success-color);
}

.followup-card.new::before {
    background: var(--success-color);
}

.followup-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.lead-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-main);
}

.lead-meta {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.stage-tag {
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.stage-tag.hot {
    background: #fee2e2;
    color: #b91c1c;
}

.stage-tag.warm {
    background: #ffedd5;
    color: #c2410c;
}

.stage-tag.cold {
    background: #e0f2fe;
    color: #0369a1;
}

.stage-tag.new {
    background: #d1fae5;
    color: #047857;
}

.message-box {
    background: #f9fafb;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.95rem;
    color: var(--text-main);
    margin-bottom: 1.25rem;
    border-left: 3px solid var(--border-color);
    flex-grow: 1;
}

.card-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 100;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius);
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.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(--card-bg);
    z-index: 10;
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
    padding: 0.5rem;
    margin: -0.5rem;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--danger-color);
}

.modal-body {
    padding: 1.5rem;
    flex-grow: 1;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.625rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    transition: all 0.2s;
}

.form-group input:focus {
    border-color: var(--primary-color);
    outline: 2px solid var(--primary-color);
    outline-offset: 1px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* Toasts */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--text-main);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 200;
    animation: slideIn 0.3s ease;
}

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

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

/* Upcoming Section */
.upcoming-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.upcoming-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    width: 140px;
    text-align: center;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.upcoming-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.upcoming-date {
    margin-bottom: 0.5rem;
}

.upcoming-day {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
}

.upcoming-day-num {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.2;
}

.upcoming-count {
    font-size: 0.875rem;
    color: var(--primary-color);
    font-weight: 500;
    background: #e0e7ff;
    padding: 0.25rem 0.5rem;
    border-radius: 99px;
}

/* Table Responsiveness */
.table-container {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    min-width: 600px;
    /* Force scroll if smaller */
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .app-container {
        padding: 1rem;
    }

    /* Header */
    .header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
        position: static;
        /* Unstick on mobile to save space */
    }

    .header h1 {
        width: 100%;
        justify-content: center;
        font-size: 1.25rem;
    }

    .header-actions {
        width: 100%;
        flex-direction: column;
        gap: 0.5rem;
    }

    .header-actions .btn {
        width: 100%;
        justify-content: center;
    }

    /* Stats Grid */
    .stats-row {
        grid-template-columns: 1fr;
        /* Stack stats */
        gap: 1rem;
    }

    /* Card Grids */
    .card-grid {
        grid-template-columns: 1fr;
        /* Stack cards */
    }

    /* Upcoming List */
    .upcoming-list {
        justify-content: center;
        /* Center items if they wrap */
    }

    .upcoming-item {
        flex: 1 1 calc(50% - 1rem);
        /* 2 items per row */
        max-width: none;
    }

    /* Modals */
    .modal-content {
        width: 95%;
        max-height: 90vh;
        overflow-y: auto;
        margin: 1rem;
    }

    /* Toast */
    .toast {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .upcoming-item {
        flex: 1 1 100%;
        /* 1 item per row on very small screens */
    }

    .followup-card .card-header {
        flex-direction: column;
        gap: 0.5rem;
    }

    .followup-card .lead-meta {
        flex-direction: column;
        align-items: flex-start;
    }

    .card-actions {
        flex-direction: column;
    }

    .card-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Admin Specific Styles */
.admin-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-muted);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: -2px;
}

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

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.settings-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    max-width: 600px;
}

.compliance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.compliance-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    text-align: center;
}

.compliance-card .percentage {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 1rem 0;
}

.compliance-card .details {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.template-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.template-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    position: relative;
}

.template-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.template-item-actions {
    display: flex;
    gap: 0.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.2s;
}

.nav-link:hover {
    background: #eef2ff;
    color: var(--primary-color);
}

.nav-link.active {
    background: #eef2ff;
    color: var(--primary-color);
}