/*
 * main.css - Spend With Intent
 *
 * Mobile-first responsive styles.
 * See ADR-0019 for architecture decisions.
 *
 * Breakpoints:
 *   - Base: Mobile (< 768px)
 *   - Tablet: 768px+
 *   - Desktop: 1024px+
 */

/* ==========================================================================
   1. CSS CUSTOM PROPERTIES
   ========================================================================== */

:root {
    /* Layout */
    --content-max-width: 800px;
    --content-padding: 1rem;

    /* Spacing scale */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */

    /* Touch targets (WCAG 2.5.8 recommends 44px min, we use 48px for comfort) */
    --touch-target-min: 48px;
}

/* Tablet: 768px+ */
@media (min-width: 768px) {
    :root {
        --content-padding: 1.5rem;
    }
}

/* Desktop: 1024px+ */
@media (min-width: 1024px) {
    :root {
        --content-padding: 2rem;
    }
}

/* ==========================================================================
   2. BASE STYLES (Mobile-first)
   ========================================================================== */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Ensure buttons meet touch target minimum */
wa-button {
    min-height: var(--touch-target-min);
}

/* ==========================================================================
   3. HEADER & NAVIGATION
   ========================================================================== */

.site-header {
    border-bottom: 1px solid var(--wa-color-neutral-200);
    padding: var(--spacing-md) var(--content-padding);
}

.site-header-inner {
    max-width: var(--content-max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo {
    font-weight: 600;
    font-size: 1.125rem;
    text-decoration: none;
}

/* Mobile menu toggle button */
.mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--touch-target-min);
    height: var(--touch-target-min);
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    color: inherit;
}

.mobile-menu-toggle wa-icon {
    font-size: 1.5rem;
}

/* Desktop navigation - hidden on mobile */
.site-nav {
    display: none;
    gap: var(--spacing-md);
    align-items: center;
}

.site-nav a {
    text-decoration: none;
    font-size: 0.875rem;
}

/* Mobile menu panel - hidden by default */
.mobile-menu {
    display: none;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--content-padding);
    background: var(--wa-color-neutral-0);
    border-bottom: 1px solid var(--wa-color-neutral-200);
}

.mobile-menu.open {
    display: flex;
}

.mobile-menu a {
    display: block;
    padding: var(--spacing-sm) 0;
    text-decoration: none;
    font-size: 1rem;
    min-height: var(--touch-target-min);
    line-height: calc(var(--touch-target-min) - var(--spacing-md));
}

/* Tablet+: Hide mobile menu entirely */
@media (min-width: 768px) {
    .mobile-menu {
        display: none !important;
    }
}

/* Tablet+: Show nav, hide hamburger */
@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }

    .site-nav {
        display: flex;
    }
}

/* ==========================================================================
   4. MAIN CONTENT
   ========================================================================== */

.site-main {
    flex: 1;
    padding: var(--spacing-xl) var(--content-padding);
}

.site-main-inner {
    max-width: var(--content-max-width);
    margin: 0 auto;
}

.page-header {
    margin-bottom: var(--spacing-lg);
}

/* ==========================================================================
   5. COMPONENTS
   ========================================================================== */

/* Card grid - mobile: single column, tablet+: auto-fit grid */
.card-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .card-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-lg);
    }
}

/* Empty state styling */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    border-radius: var(--wa-border-radius-large);
    border: 1px dashed var(--wa-color-neutral-300);
}

/* Dashboard components */
.dashboard-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.dashboard-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.dashboard-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.dashboard-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--wa-color-neutral-200);
}

.dashboard-row-content {
    flex: 1;
    min-width: 0;
}

.dashboard-row-meta {
    text-align: right;
    flex-shrink: 0;
}

/* On very narrow screens, stack row content */
@media (max-width: 400px) {
    .dashboard-row {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .dashboard-row-meta {
        text-align: left;
    }
}

/* Transaction list components */
.transaction-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.transaction-card-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.transaction-card-main {
    flex: 1;
    min-width: 0;
}

.transaction-card-meta {
    text-align: right;
    flex-shrink: 0;
}

.transaction-card-meta .amount {
    font-size: 1.125rem;
    font-weight: 600;
}

.transaction-badges {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* Stack transaction cards on narrow screens */
@media (max-width: 400px) {
    .transaction-card-content {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .transaction-card-meta {
        text-align: left;
    }
}

/* Full-width button utility */
.w-full {
    width: 100%;
}

/* List card components */
.list-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.list-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.list-detail-header h1 {
    margin: 0;
}

/* Form components */
.form-container {
    max-width: 500px;
    margin: var(--spacing-xl) auto;
}

.form-card-title {
    margin: 0;
    font-size: 1.5rem;
}

.form-field {
    margin-bottom: var(--spacing-md);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
}

.form-legend {
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.form-readonly-field {
    margin-bottom: var(--spacing-md);
    padding: 0.75rem;
    background: var(--wa-color-neutral-100);
    border-radius: var(--wa-border-radius-medium);
}

/* Account row - for linked bank accounts */
.account-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--wa-color-neutral-100);
    border-radius: var(--wa-border-radius-medium);
    border: 1px solid var(--wa-color-neutral-200);
}

.account-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.account-row-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Search dropdown for merchant search */
.search-dropdown-container {
    position: relative;
    z-index: 100; /* Create stacking context above form fields below */
}

.search-results-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--wa-color-neutral-0);
    border: 1px solid var(--wa-color-neutral-300);
    border-radius: var(--wa-border-radius-medium);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    max-height: 240px;
    overflow-y: auto;
    z-index: 1000;
    margin-top: var(--spacing-xs);
}

.search-result-item.highlighted {
    background-color: var(--wa-color-neutral-100);
}

.search-result-item {
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    border-bottom: 1px solid var(--wa-color-neutral-100);
    transition: background-color 0.1s ease;
}

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

.search-result-item:hover {
    background-color: var(--wa-color-neutral-100);
}

.search-result-item:active {
    background-color: var(--wa-color-neutral-200);
}

.search-empty-state {
    padding: var(--spacing-md);
    text-align: center;
    color: var(--wa-color-neutral-500);
    font-size: 0.875rem;
}

.search-create-item {
    color: var(--wa-color-primary-600);
    font-weight: 500;
    border-top: 1px solid var(--wa-color-neutral-200);
}

/* Loading indicator for HTMX */
.htmx-indicator {
    display: none;
    padding: var(--spacing-md);
    text-align: center;
}

.htmx-request .htmx-indicator {
    display: block;
}

.htmx-request.htmx-indicator {
    display: block;
}

/* ==========================================================================
   6. RESPONSIVE UTILITIES
   ========================================================================== */

/* Visibility by breakpoint */
.mobile-only {
    display: block;
}

.desktop-only {
    display: none;
}

@media (min-width: 768px) {
    .mobile-only {
        display: none;
    }

    .desktop-only {
        display: block;
    }
}

/* ==========================================================================
   7. SPACING UTILITIES
   ========================================================================== */

/* Typography */
.text-small {
    font-size: 0.875rem;
}

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

/*
 * Fluid typography using clamp()
 * Formula: clamp(min, preferred, max)
 * preferred = Xvw + Yrem scales smoothly between breakpoints
 */
.text-hero {
    font-size: clamp(1.75rem, 5vw + 0.5rem, 2.5rem);
}

.text-tagline {
    font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
}

/* Home page components */
.hero {
    text-align: center;
    padding: 3rem 0 4rem;
}

.hero h1 {
    margin-bottom: var(--spacing-md);
}

.hero .tagline {
    color: var(--wa-color-neutral-600);
    margin-bottom: var(--spacing-xl);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
    margin: 3rem 0;
}

.feature-card {
    padding: var(--spacing-lg);
    background: var(--wa-color-neutral-0);
    border-radius: var(--wa-border-radius-large);
    border: 1px solid var(--wa-color-neutral-200);
}

.feature-card .step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background: var(--wa-color-primary-100);
    color: var(--wa-color-primary-700);
    border-radius: 50%;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.feature-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--wa-color-neutral-900);
}

.feature-card p {
    font-size: 0.9375rem;
    margin: 0;
    color: var(--wa-color-neutral-600);
}

.cta-section {
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--wa-color-neutral-200);
}

.cta-section p {
    margin-top: var(--spacing-md);
}

/* Status page icons */
.status-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.status-icon-primary {
    color: var(--wa-color-primary-600);
}

.status-icon-warning {
    color: var(--wa-color-warning-600);
}

/* Section headings - proper spacing above */
h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

/* First h2 after page-header doesn't need top margin */
.page-header + h2 {
    margin-top: 0;
}

/* Spacing - margin top */
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

/* Spacing - margin bottom */
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }