/**
 * Root styles - CSS variables and base reset
 */

:root {
    /* Colors - Dark elegant theme (Night - default) */
    --color-bg-primary: #0d0d0d;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #2a2a2a;

    --color-text-primary: #f5f5f5;
    --color-text-secondary: #b0b0b0;
    --color-text-muted: #707070;

    --color-accent: #c9a55c;
    --color-accent-hover: #dbb86a;
    --color-accent-dark: #a8873d;

    --color-border: #333333;
    --color-border-light: #444444;

    /* Header specific */
    --header-bg: rgba(13, 13, 13, 0.95);

    /* Typography */
    --font-primary: 'Georgia', 'Times New Roman', serif;
    --font-secondary: 'Helvetica Neue', Arial, sans-serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;

    --line-height-tight: 1.2;
    --line-height-base: 1.6;
    --line-height-relaxed: 1.8;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;
    --header-height: 70px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Z-index layers */
    --z-base: 1;
    --z-header: 100;
    --z-modal: 200;
    --z-loader: 300;
}

/* Light theme (Day) - only override colors */
[data-theme="light"] {
    --color-bg-primary: #f5f2ed;
    --color-bg-secondary: #ffffff;
    --color-bg-tertiary: #e8e4dd;

    --color-text-primary: #1a1a1a;
    --color-text-secondary: #4a4a4a;
    --color-text-muted: #888888;

    --color-accent: #a8873d;
    --color-accent-hover: #c9a55c;
    --color-accent-dark: #8a6f32;

    --color-border: #d4d0c8;
    --color-border-light: #e8e4dd;

    --header-bg: rgba(245, 242, 237, 0.95);

    /* Shadows - lighter for day theme */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    min-height: 100vh;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* Typography base */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

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

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

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

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

/* Main content - must be below mobile nav overlay */
#main-content {
    position: relative;
    z-index: 1;
    padding-top: var(--header-height);
}

/* Ensure sections don't create higher stacking contexts */
.hero,
.section {
    position: relative;
    z-index: 1;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* Utility classes */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

/* Button styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

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

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

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* Form styles */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: inherit;
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

/* Honeypot field (hidden) */
.hp-field {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

/* Modal base */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.8);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 400px;
    padding: var(--spacing-xl);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
}

/* Responsive */
@media (min-width: 768px) {
    :root {
        --header-height: 80px;
    }

    .container {
        padding: 0 var(--spacing-xl);
    }
}