/**
 * Email Builder - Main Styles
 * Light theme, clean professional design
 */

:root {
    /* Light Theme Colors */
    --bg-primary: #fafafa;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-hover: #f9fafb;
    --border-color: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #374151;
    --text-muted: #6b7280;

    /* Accent colors */
    --accent-purple: #0066cc;
    --accent-pink: #0066cc;
    --accent-blue: #0066cc;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --accent-orange: #f59e0b;

    /* Gradients */
    --gradient-primary: #0066cc;
    --gradient-secondary: #0052a3;

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

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

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

html {
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: #0066cc;
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover:not(.btn) {
    color: #0052a3;
}

/* Layout */
.app-container {
    display: flex;
    min-height: 100vh;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    transition: margin-left 0.3s ease;
    width: calc(100% - 260px);
    max-width: calc(100% - 260px);
    min-width: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 15px;
    width: 100%;
    box-sizing: border-box;
}

.container-fluid {
    padding: 15px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    min-width: 0;
}

/* Grid */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Spacing utilities */
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

/* Text utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

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

.font-bold { font-weight: 600; }
.font-semibold { font-weight: 500; }

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-md);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.fade-in { animation: fadeIn var(--transition-base); }
.slide-in { animation: slideIn var(--transition-base); }

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes toastIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes toastOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(8px); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.page-content {
    animation: fadeInUp 0.44s ease-out;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.container-fluid.page-content {
    margin-top: 0;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.page-content.fade-out {
    animation: fadeOut 0.22s ease-in forwards;
}

/* Prevent horizontal scroll */
html, body {
    overflow-x: hidden;
}

@media (max-width: 768px) {
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="date"],
    input[type="tel"],
    input[type="url"],
    select,
    textarea {
        font-size: 16px !important;
    }

    .input, .select, .textarea {
        max-width: 100%;
        box-sizing: border-box;
    }

    .btn {
        min-height: 44px;
        min-width: 44px;
    }

    .btn-sm {
        min-height: 36px;
        padding: 0.5rem 0.75rem;
    }

    .btn-icon {
        min-width: 36px;
        min-height: 36px;
    }

    .card { padding: 1rem; }
    .flex { flex-wrap: wrap; }
    .gap-md { gap: 0.75rem; }

    input[type="date"] {
        -webkit-appearance: none;
        appearance: none;
        min-width: 0;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .card { padding: 0.75rem; }
    .btn { font-size: 0.875rem; }
    .page-content { padding: 0.5rem; }
    .hide-xs { display: none !important; }
}