/* ============================================
   BASE STYLES - Global Reset & Foundation
   ============================================ */

/* CSS Variables for Theme Colors */
:root {
    --primary-navy: #0c1b33;
    --accent-gold: #d4a953;
    --white: #ffffff;
    --light-gray: #f5f6f7;
    --dark-gray: #2c3e50;
    --text-dark: #1a1a1a;
    --text-light: #6c757d;
    --border-color: #e0e0e0;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
}

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

*::before,
*::after {
    box-sizing: inherit;
}

/* HTML & Body */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--primary-navy);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

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

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

/* Lists */
ul,
ol {
    list-style: none;
}

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

/* Buttons */
button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
    transition: var(--transition-normal);
}

/* Input & Textarea */
input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: 1px solid var(--border-color);
    transition: var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--accent-gold);
}

/* Selection */
::selection {
    background-color: var(--accent-gold);
    color: var(--white);
}

::-moz-selection {
    background-color: var(--accent-gold);
    color: var(--white);
}

/* Scrollbar (Webkit) */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-navy);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-gold);
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* Section Spacing */
section {
    padding: var(--spacing-xl) 0;
}

@media (max-width: 768px) {
    section {
        padding: var(--spacing-lg) 0;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

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

.d-none {
    display: none !important;
}

.d-block {
    display: block !important;
}

.d-flex {
    display: flex !important;
}

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

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

/* Accessibility */
.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;
}

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