/* ==========================================================================
   iMoney — Main Stylesheet
   ========================================================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #034568;
    --color-primary-dark: #022d44;
    --color-primary-light: #0a6a9e;
    --color-accent: #eeb238;
    --color-accent-dark: #d49a1f;
    --color-accent-light: #f5c964;
    --color-white: #ffffff;
    --color-black: #0a0a0a;
    --color-gray-50: #f8f9fa;
    --color-gray-100: #f1f3f5;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #868e96;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;
    --color-red: #e03131;
    --color-green: #2f9e44;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Merriweather', Georgia, 'Times New Roman', serif;

    /* Font sizes — fluid typography */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: clamp(0.95rem, 0.9rem + 0.25vw, 1.0625rem);
    --text-lg: clamp(1.05rem, 1rem + 0.25vw, 1.175rem);
    --text-xl: clamp(1.15rem, 1.05rem + 0.5vw, 1.35rem);
    --text-2xl: clamp(1.3rem, 1.15rem + 0.75vw, 1.6rem);
    --text-3xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
    --text-4xl: clamp(1.75rem, 1.4rem + 1.75vw, 2.5rem);

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Layout */
    --container-max: 1280px;
    --container-wide: 1400px;
    --sidebar-width: 320px;
    --header-height: 60px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;

    /* Z-index scale */
    --z-back-to-top: 90;
    --z-header: 100;
    --z-header-search: 150;
    --z-header-menus: 200;
    --z-bottom-nav: 1000;
    --z-toast: 9999;
    --z-progress: 9999;
    --z-menu-open-header: 10000;
    --z-menu-overlay: 2;
    --z-menu-panel: 3;
}

/* ==========================================================================
   Dark Mode
   ========================================================================== */

[data-theme="dark"] {
    --color-primary: #4da8da;
    --color-primary-dark: #1a1a2e;
    --color-primary-light: #6dc0ed;
    --color-accent: #eeb238;
    --color-accent-dark: #d49a1f;
    --color-white: #1a1a2e;
    --color-black: #e8e8e8;
    --color-gray-50: #16213e;
    --color-gray-100: #1a1a2e;
    --color-gray-200: #2a2a3e;
    --color-gray-300: #3a3a4e;
    --color-gray-400: #5a5a6e;
    --color-gray-500: #8a8a9e;
    --color-gray-600: #aaaabc;
    --color-gray-700: #ccccdc;
    --color-gray-800: #dddde8;
    --color-gray-900: #eeeef4;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-primary: #4da8da;
        --color-primary-dark: #1a1a2e;
        --color-primary-light: #6dc0ed;
        --color-accent: #eeb238;
        --color-accent-dark: #d49a1f;
        --color-white: #1a1a2e;
        --color-black: #e8e8e8;
        --color-gray-50: #16213e;
        --color-gray-100: #1a1a2e;
        --color-gray-200: #2a2a3e;
        --color-gray-300: #3a3a4e;
        --color-gray-400: #5a5a6e;
        --color-gray-500: #8a8a9e;
        --color-gray-600: #aaaabc;
        --color-gray-700: #ccccdc;
        --color-gray-800: #dddde8;
        --color-gray-900: #eeeef4;
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
        --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
    }
}

/* Dark mode toggle button */
.dark-mode-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 2px;
    color: var(--color-gray-700);
    transition: all var(--transition-fast);
}

.dark-mode-toggle:hover {
    background-color: var(--color-gray-100);
    color: var(--color-primary);
}

.dark-mode-toggle__sun,
.dark-mode-toggle__moon {
    display: none;
}

[data-theme="dark"] .dark-mode-toggle__sun {
    display: block;
}

[data-theme="dark"] .dark-mode-toggle__moon {
    display: none;
}

:root:not([data-theme="dark"]) .dark-mode-toggle__sun {
    display: none;
}

:root:not([data-theme="dark"]) .dark-mode-toggle__moon {
    display: block;
}

/* ==========================================================================
   Reset
   ========================================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s ease, color 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-gray-900);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
    margin-bottom: var(--space-4);
}

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

table {
    border-collapse: collapse;
    width: 100%;
}

/* Focus visible */
:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

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

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.container--wide {
    max-width: var(--container-wide);
}

.site-content {
    min-height: calc(100vh - var(--header-height) - 200px);
    padding: var(--space-8) 0;
}

.content-area {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: var(--space-8);
}

.content-area--full {
    grid-template-columns: 1fr;
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */

.breadcrumbs {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--space-3) 0;
}

.breadcrumbs__list {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    flex-wrap: wrap;
}

.breadcrumbs__item a {
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.breadcrumbs__item a:hover {
    color: var(--color-accent-dark);
}

.breadcrumbs__item:last-child span {
    color: var(--color-gray-600);
    font-weight: 500;
}

.breadcrumbs__separator {
    color: var(--color-gray-400);
    font-size: var(--text-xs);
}

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.section-title {
    font-size: var(--text-lg);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    padding-bottom: var(--space-2);
    margin-bottom: var(--space-4);
    border-bottom: 3px solid var(--color-accent);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.section-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 20px;
    background-color: var(--color-accent);
}

.category-badge {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-1) var(--space-2);
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
    transition: background-color var(--transition-fast);
}

.category-badge:hover {
    background-color: var(--color-accent-dark);
    color: var(--color-white);
}

.meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.meta__author {
    font-weight: 600;
    color: var(--color-primary);
}

.meta__date {
    color: var(--color-gray-500);
}

.meta__separator {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: var(--color-gray-400);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) var(--space-6);
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: 2px;
    transition: all var(--transition-fast);
    gap: var(--space-2);
}

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

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

.btn--outline {
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    background: transparent;
}

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

/* ==========================================================================
   WordPress Core Alignment
   ========================================================================== */

.alignleft {
    float: left;
    margin-right: var(--space-4);
    margin-bottom: var(--space-4);
}

.alignright {
    float: right;
    margin-left: var(--space-4);
    margin-bottom: var(--space-4);
}

.aligncenter {
    display: block;
    margin: 0 auto var(--space-4);
}

.wp-caption {
    max-width: 100%;
}

.wp-caption-text {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    text-align: center;
    padding: var(--space-2) 0;
}

/* Screen reader text (WordPress) */
.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}