:root {
    /* Color Palette - Primary */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #3b82f6;

    /* Color Palette - Semantic */
    --color-success: #10b981;
    --color-success-hover: #059669;
    --color-warning: #f59e0b;
    --color-warning-hover: #d97706;
    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;

    /* Color Palette - Neutral Grays */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Color Palette - Surfaces */
    --color-background: #f8fafc;
    --color-surface: #ffffff;
    --color-border: #e5e7eb;

    /* Color Palette - Text */
    --color-text: #111827;
    --color-text-secondary: #6b7280;
    --color-text-muted: #9ca3af;

    /* Typography - Font Family */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', 'Arial', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';

    /* Typography - Font Sizes */
    --font-size-xs: 0.75rem;
    /* 12px */
    --font-size-sm: 0.875rem;
    /* 14px */
    --font-size-base: 1rem;
    /* 16px */
    --font-size-lg: 1.125rem;
    /* 18px */
    --font-size-xl: 1.25rem;
    /* 20px */
    --font-size-2xl: 1.5rem;
    /* 24px */
    --font-size-3xl: 1.875rem;
    /* 30px */
    --font-size-4xl: 2.25rem;
    /* 36px */

    /* Typography - Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Typography - Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Spacing Scale (4px base unit) */
    --spacing-1: 0.25rem;
    /* 4px */
    --spacing-2: 0.5rem;
    /* 8px */
    --spacing-3: 0.75rem;
    /* 12px */
    --spacing-4: 1rem;
    /* 16px */
    --spacing-6: 1.5rem;
    /* 24px */
    --spacing-8: 2rem;
    /* 32px */
    --spacing-10: 2.5rem;
    /* 40px */
    --spacing-12: 3rem;
    /* 48px */
    --spacing-16: 4rem;
    /* 64px */
    --spacing-20: 5rem;
    /* 80px */
    --spacing-24: 6rem;
    /* 96px */
    --spacing-32: 8rem;
    /* 128px */
    --spacing-40: 10rem;
    /* 160px */
    --spacing-48: 12rem;
    /* 192px */
    --spacing-64: 16rem;
    /* 256px */

    /* Border Radius */
    --radius-sm: 0.25rem;
    /* 4px */
    --radius-md: 0.5rem;
    /* 8px */
    --radius-lg: 0.75rem;
    /* 12px */
    --radius-xl: 1rem;
    /* 16px */
    --radius-full: 9999px;

    /* Shadows */
    --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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;

    /* Layout */
    --global-navbar-height: 80px;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ================================
   Material Icons Utilities
   ================================ */

.material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-weight: normal;
    font-style: normal;
    font-size: 24px;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: 'liga';
}

/* Size variants */
.icon-sm { font-size: 18px; }
.icon-md { font-size: 24px; }
.icon-lg { font-size: 32px; }
.icon-xl { font-size: 48px; }

/* Filled variant */
.material-symbols-outlined.filled {
    font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* ================================
   Global Reset & Base Styles
   ================================ */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-background);
    min-height: 100vh;
}

/* Remove default list styles */
ul,
ol {
    list-style: none;
}

/* Remove default link styles */
a {
    color: inherit;
    text-decoration: none;
}

/* Remove default button styles */
button {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}

/* Remove default input styles */
input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

/* Improve image defaults */
img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

/* Remove default fieldset styles */
fieldset {
    border: none;
}

/* ================================
   Layout Utilities
   ================================ */

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-4);
    padding-right: var(--spacing-4);
}

.container-sm {
    max-width: 640px;
}

.container-md {
    max-width: 768px;
}

.container-lg {
    max-width: 1024px;
}

.container-xl {
    max-width: 1280px;
}

.container-2xl {
    max-width: 1536px;
}

/* Flexbox Utilities */
.flex {
    display: flex;
}

.inline-flex {
    display: inline-flex;
}

.flex-row {
    flex-direction: row;
}

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

.flex-wrap {
    flex-wrap: wrap;
}

.flex-nowrap {
    flex-wrap: nowrap;
}

.items-start {
    align-items: flex-start;
}

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

.items-end {
    align-items: flex-end;
}

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

.justify-start {
    justify-content: flex-start;
}

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

.justify-end {
    justify-content: flex-end;
}

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

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

.gap-1 {
    gap: var(--spacing-1);
}

.gap-2 {
    gap: var(--spacing-2);
}

.gap-3 {
    gap: var(--spacing-3);
}

.gap-4 {
    gap: var(--spacing-4);
}

.gap-6 {
    gap: var(--spacing-6);
}

.gap-8 {
    gap: var(--spacing-8);
}

.flex-1 {
    flex: 1 1 0%;
}

.flex-auto {
    flex: 1 1 auto;
}

.flex-none {
    flex: none;
}

/* Grid Utilities */
.grid {
    display: grid;
}

.grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid-cols-6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
}

.grid-cols-12 {
    grid-template-columns: repeat(12, minmax(0, 1fr));
}

/* Display Utilities */
.block {
    display: block;
}

.inline-block {
    display: inline-block;
}

.inline {
    display: inline;
}

.hidden {
    display: none;
}

/* Position Utilities */
.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.fixed {
    position: fixed;
}

.sticky {
    position: sticky;
}

/* ================================
   Typography Utilities
   ================================ */

.text-xs {
    font-size: var(--font-size-xs);
}

.text-sm {
    font-size: var(--font-size-sm);
}

.text-base {
    font-size: var(--font-size-base);
}

.text-lg {
    font-size: var(--font-size-lg);
}

.text-xl {
    font-size: var(--font-size-xl);
}

.text-2xl {
    font-size: var(--font-size-2xl);
}

.text-3xl {
    font-size: var(--font-size-3xl);
}

.text-4xl {
    font-size: var(--font-size-4xl);
}

.font-normal {
    font-weight: var(--font-weight-normal);
}

.font-medium {
    font-weight: var(--font-weight-medium);
}

.font-semibold {
    font-weight: var(--font-weight-semibold);
}

.font-bold {
    font-weight: var(--font-weight-bold);
}

.text-left {
    text-align: left;
}

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

.text-right {
    text-align: right;
}

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

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

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

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

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

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

/* ================================
   Spacing Utilities
   ================================ */

.m-0 {
    margin: 0;
}

.m-1 {
    margin: var(--spacing-1);
}

.m-2 {
    margin: var(--spacing-2);
}

.m-3 {
    margin: var(--spacing-3);
}

.m-4 {
    margin: var(--spacing-4);
}

.m-6 {
    margin: var(--spacing-6);
}

.m-8 {
    margin: var(--spacing-8);
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: var(--spacing-1);
}

.mt-2 {
    margin-top: var(--spacing-2);
}

.mt-3 {
    margin-top: var(--spacing-3);
}

.mt-4 {
    margin-top: var(--spacing-4);
}

.mt-6 {
    margin-top: var(--spacing-6);
}

.mt-8 {
    margin-top: var(--spacing-8);
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--spacing-1);
}

.mb-2 {
    margin-bottom: var(--spacing-2);
}

.mb-3 {
    margin-bottom: var(--spacing-3);
}

.mb-4 {
    margin-bottom: var(--spacing-4);
}

.mb-6 {
    margin-bottom: var(--spacing-6);
}

.mb-8 {
    margin-bottom: var(--spacing-8);
}

.ml-0 {
    margin-left: 0;
}

.ml-1 {
    margin-left: var(--spacing-1);
}

.ml-2 {
    margin-left: var(--spacing-2);
}

.ml-3 {
    margin-left: var(--spacing-3);
}

.ml-4 {
    margin-left: var(--spacing-4);
}

.mr-0 {
    margin-right: 0;
}

.mr-1 {
    margin-right: var(--spacing-1);
}

.mr-2 {
    margin-right: var(--spacing-2);
}

.mr-3 {
    margin-right: var(--spacing-3);
}

.mr-4 {
    margin-right: var(--spacing-4);
}

.p-0 {
    padding: 0;
}

.p-1 {
    padding: var(--spacing-1);
}

.p-2 {
    padding: var(--spacing-2);
}

.p-3 {
    padding: var(--spacing-3);
}

.p-4 {
    padding: var(--spacing-4);
}

.p-6 {
    padding: var(--spacing-6);
}

.p-8 {
    padding: var(--spacing-8);
}

.pt-0 {
    padding-top: 0;
}

.pt-1 {
    padding-top: var(--spacing-1);
}

.pt-2 {
    padding-top: var(--spacing-2);
}

.pt-3 {
    padding-top: var(--spacing-3);
}

.pt-4 {
    padding-top: var(--spacing-4);
}

.pt-6 {
    padding-top: var(--spacing-6);
}

.pt-8 {
    padding-top: var(--spacing-8);
}

.pb-0 {
    padding-bottom: 0;
}

.pb-1 {
    padding-bottom: var(--spacing-1);
}

.pb-2 {
    padding-bottom: var(--spacing-2);
}

.pb-3 {
    padding-bottom: var(--spacing-3);
}

.pb-4 {
    padding-bottom: var(--spacing-4);
}

.pb-6 {
    padding-bottom: var(--spacing-6);
}

.pb-8 {
    padding-bottom: var(--spacing-8);
}

.pl-0 {
    padding-left: 0;
}

.pl-1 {
    padding-left: var(--spacing-1);
}

.pl-2 {
    padding-left: var(--spacing-2);
}

.pl-3 {
    padding-left: var(--spacing-3);
}

.pl-4 {
    padding-left: var(--spacing-4);
}

.pr-0 {
    padding-right: 0;
}

.pr-1 {
    padding-right: var(--spacing-1);
}

.pr-2 {
    padding-right: var(--spacing-2);
}

.pr-3 {
    padding-right: var(--spacing-3);
}

.pr-4 {
    padding-right: var(--spacing-4);
}

/* ================================
   Border & Radius Utilities
   ================================ */

.rounded-sm {
    border-radius: var(--radius-sm);
}

.rounded-md {
    border-radius: var(--radius-md);
}

.rounded-lg {
    border-radius: var(--radius-lg);
}

.rounded-xl {
    border-radius: var(--radius-xl);
}

.rounded-full {
    border-radius: var(--radius-full);
}

.border {
    border: 1px solid var(--color-border);
}

.border-t {
    border-top: 1px solid var(--color-border);
}

.border-b {
    border-bottom: 1px solid var(--color-border);
}

.border-l {
    border-left: 1px solid var(--color-border);
}

.border-r {
    border-right: 1px solid var(--color-border);
}

/* ================================
   Shadow Utilities
   ================================ */

.shadow-sm {
    box-shadow: var(--shadow-sm);
}

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

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

.shadow-xl {
    box-shadow: var(--shadow-xl);
}

.shadow-none {
    box-shadow: none;
}

/* ================================
   Background Utilities
   ================================ */

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

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

.bg-warning {
    background-color: var(--color-warning);
}

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

.bg-surface {
    background-color: var(--color-surface);
}

.bg-background {
    background-color: var(--color-background);
}

.bg-gray-50 {
    background-color: var(--color-gray-50);
}

.bg-gray-100 {
    background-color: var(--color-gray-100);
}

.bg-gray-200 {
    background-color: var(--color-gray-200);
}

/* ================================
   Width & Height Utilities
   ================================ */

.w-full {
    width: 100%;
}

.w-auto {
    width: auto;
}

.h-full {
    height: 100%;
}

.h-auto {
    height: auto;
}

.min-h-screen {
    min-height: 100vh;
}

/* ================================
   Overflow Utilities
   ================================ */

.overflow-auto {
    overflow: auto;
}

.overflow-hidden {
    overflow: hidden;
}

.overflow-scroll {
    overflow: scroll;
}

/* ================================
   Transition Utilities
   ================================ */

.transition {
    transition-property: all;
    transition-duration: var(--transition-base);
}

.transition-fast {
    transition-duration: var(--transition-fast);
}

.transition-slow {
    transition-duration: var(--transition-slow);
}

/* ================================
   App-Specific Base Styles
   ================================ */

/* Global Navigation Bar */
.global-navbar {
    position: fixed;
    top: 0;
    left: 240px;
    right: 0;
    height: var(--global-navbar-height);
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    z-index: var(--z-sticky);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0 var(--spacing-6);
    gap: var(--spacing-6);
}

.campaign-selector {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.campaign-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    letter-spacing: 0.5px;
    margin-top: var(--spacing-6);
}

.campaign-dropdown {
    min-width: 280px;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    outline: none;
    margin-bottom: var(--spacing-6);
}

.campaign-dropdown:hover {
    border-color: var(--color-gray-400);
}

.campaign-dropdown:focus {
    border-color: var(--color-primary);
}

/* Client Selector - Same styling as Campaign Selector */
.client-selector {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.client-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    letter-spacing: 0.5px;
    margin-top: var(--spacing-6);
}

.client-dropdown {
    min-width: 280px;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    outline: none;
    margin-bottom: var(--spacing-6);
}

.client-dropdown:hover {
    border-color: var(--color-gray-400);
}

.client-dropdown:focus {
    border-color: var(--color-primary);
}

.current-client-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-left: auto;
    padding: var(--spacing-2) var(--spacing-4);
    background-color: var(--color-gray-50);
    border-radius: var(--border-radius-md);
}

.client-logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
    border-radius: var(--border-radius-sm);
}

.client-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

/* Main Content Layout */
.main-content {
    margin-left: 240px;
    margin-top: var(--global-navbar-height);
    min-height: calc(100vh - var(--global-navbar-height));
    padding: var(--spacing-8);
    background-color: var(--color-background);
    overflow: auto;
    width: calc(100% - 240px);
    box-sizing: border-box;
}

body.no-global-navbar {
    --global-navbar-height: 0px;
}

body.no-global-navbar .main-content {
    margin-top: 0;
    min-height: 100vh;
}

#app {
    min-height: 100%;
}

/* Responsive Breakpoints */
@media (max-width: 1023px) {
    .global-navbar {
        left: 0;
    }

    .main-content {
        margin-left: 0;
        padding: var(--spacing-6);
    }
}

@media (max-width: 767px) {
    .global-navbar {
        padding: 0 var(--spacing-4);
        flex-wrap: wrap;
        height: auto;
        min-height: 80px;
    }

    .navbar-selectors {
        flex-wrap: wrap;
        gap: var(--spacing-4);
    }

    .campaign-dropdown,
    .client-dropdown {
        min-width: 200px;
    }

    .current-client-display {
        flex-basis: 100%;
        justify-content: center;
        margin-top: var(--spacing-2);
    }

    .main-content {
        padding: var(--spacing-4);
    }
}

/* Clickable wizard steps for edit mode */
.wizard-step.clickable {
    cursor: pointer;
    transition: opacity 0.2s;
}

.wizard-step.clickable:hover {
    opacity: 0.8;
}

.wizard-step.clickable:hover .wizard-step-circle {
    background: #1d4ed8;
    transform: scale(1.05);
}

/* Campaign card actions */
.campaign-actions {
    display: flex;
    gap: 8px;
}

/* Edit mode button styling */
.btn-wizard.edit-mode {
    background: var(--color-success);
    color: white;
}

.btn-wizard.edit-mode:hover {
    background: #059669;
}

/* Profile section styling */
.profile-section {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 1.5rem;
}

.profile-section-title {
    color: #1f2937;
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
}

.profile-section-description {
    color: #6b7280;
    font-size: 0.875rem;
    margin: 0 0 1rem 0;
}

/* ================================
   Autocomplete Dropdown Styles
   ================================ */

.autocomplete-wrapper {
    position: relative;
}

.autocomplete-wrapper input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 15px;
    color: #1a1a1a;
    background: white;
    transition: all 0.2s ease;
    height: 48px;
    box-sizing: border-box;
}

.autocomplete-wrapper input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.autocomplete-wrapper input::placeholder {
    color: #9ca3af;
}

.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--color-gray-200);
    border-top: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    max-height: 250px;
    overflow-y: auto;
    display: none;
    z-index: var(--z-dropdown);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.autocomplete-dropdown.active {
    display: block;
}

.autocomplete-item {
    padding: 10px 12px;
    cursor: pointer;
    border-bottom: 1px solid var(--color-gray-100);
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover {
    background-color: var(--color-gray-50);
}

.autocomplete-item.selected {
    background-color: #eef2ff;
}

.autocomplete-empty {
    padding: 10px 12px;
    color: var(--color-gray-400);
    font-style: italic;
}

/* ================================
   No Client Selected State
   ================================ */

.no-client-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
    padding: var(--spacing-8);
}

.no-client-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-4);
    opacity: 0.5;
}

.no-client-state h2 {
    color: var(--color-text);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    margin: 0 0 var(--spacing-3) 0;
}

.no-client-state p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    margin: 0;
    max-width: 400px;
}