/**
 * BizzShort Unified Design System
 * Master CSS file for consistent styling across all pages
 */

/* ============================================
   CSS Custom Properties (Variables)
   ============================================ */
:root {
    /* Color Palette - Navy Theme */
    --color-primary: #004de6;
    --color-primary-dark: #0037a3;
    --color-primary-light: #3371eb;

    --color-secondary: #4a90e2;
    --color-secondary-dark: #3a7bc8;
    --color-secondary-light: #6ba3eb;

    --color-accent: #e74c3c;
    --color-accent-dark: #c0392b;

    /* Neutral Colors */
    --color-background: #f8f9fa;
    --color-background-dark: #ecf0f1;
    --color-surface: #ffffff;

    --color-text-primary: #2c3e50;
    --color-text-secondary: #7f8c8d;
    --color-text-light: #95a5a6;
    --color-text-inverse: #ffffff;

    /* Semantic Colors */
    --color-success: #27ae60;
    --color-warning: #f39c12;
    --color-error: #e74c3c;
    --color-info: #3498db;

    /* Market Colors */
    --color-market-positive: #27ae60;
    --color-market-negative: #e74c3c;
    --color-market-neutral: #95a5a6;

    /* Typography */
    --font-primary: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Poppins', 'Roboto', sans-serif;

    --font-size-xs: 0.75rem;
    /* 12px */
    --font-size-sm: 0.875rem;
    /* 14px */
    --font-size-base: 1rem;
    /* 16px */
    --font-size-lg: 1.125rem;
    /* 18px */
    --font-size-xl: 1.25rem;
    /* 20px */
    --font-size-2xl: 1.5rem;
    /* 24px */
    --font-size-3xl: 1.875rem;
    /* 30px */
    --font-size-4xl: 2.25rem;
    /* 36px */
    --font-size-5xl: 3rem;
    /* 48px */

    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    --line-height-loose: 2;

    /* 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 */
    --spacing-2xl: 3rem;
    /* 48px */
    --spacing-3xl: 4rem;
    /* 64px */
    --spacing-4xl: 5rem;
    /* 80px */

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

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

    /* Z-index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;

    /* Breakpoints (for reference in media queries) */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;

    /* Container Max Widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
}

/* ============================================
   Base Resets & Typography
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    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-normal);
    color: var(--color-text-primary);
    background-color: var(--color-background);
}

/* ============================================
   Unified Header Styles
   ============================================ */
.header {
    background: var(--color-surface);
    position: relative;
    z-index: var(--z-sticky);
}

.header-top-section {
    background: var(--color-surface);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding: var(--spacing-md) 0;
}

.logo-ad-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
    flex-shrink: 0;
}

.logo-img {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    object-fit: cover;
}

.logo-text h1 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin: 0;
}

.logo-text p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ad-banner-container {
    flex-grow: 1;
    display: flex;
    justify-content: flex-end;
    max-width: 728px;
}

.top-ad-banner {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

/* ============================================
   Unified Navigation Styles
   ============================================ */
.navbar-section {
    background: var(--color-primary);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    transition: all var(--transition-base);
}

.navbar-section.scrolled {
    box-shadow: var(--shadow-lg);
    background: var(--color-primary-dark);
}

.main-nav {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
}

.main-nav ul li {
    margin: 0;
}

.main-nav ul li a {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-text-inverse);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
    position: relative;
}

.main-nav ul li a:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.main-nav ul li a.active {
    background: rgba(255, 255, 255, 0.2);
    font-weight: var(--font-weight-semibold);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-text-inverse);
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
}

/* ============================================
   Unified Footer Styles
   ============================================ */
.site-footer {
    background: var(--color-primary-dark);
    color: var(--color-text-inverse);
    padding-top: var(--spacing-3xl);
}

.footer-container {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-grid-enhanced {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-col h4 {
    color: var(--color-text-inverse);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-lg);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--color-text-inverse);
    transform: translateX(5px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-2xl);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

/* ============================================
   Utility Classes
   ============================================ */
.container {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-size: var(--font-size-base);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-text-inverse);
}

.btn-secondary:hover {
    background: var(--color-secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .logo-ad-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }

    .ad-banner-container {
        width: 100%;
        max-width: 100%;
    }

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

    .main-nav ul {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-primary);
        flex-direction: column;
        align-items: stretch;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
    }

    .main-nav ul.active {
        max-height: 500px;
        box-shadow: var(--shadow-xl);
    }

    .main-nav ul li {
        width: 100%;
    }

    .main-nav ul li a {
        width: 100%;
        text-align: left;
    }

    .footer-grid-enhanced {
        grid-template-columns: 1fr;
    }
}