/* ==========================================================================
   CSS Variables - Design Tokens
   ========================================================================== */

:root {
    /* Colors - Light Mode */
    --color-primary: #ff6b35;
    --color-primary-light: #ff8c5a;
    --color-primary-dark: #e55a25;
    --color-secondary: #1a1a2e;
    --color-accent: #ffd700;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;
    
    /* Theme Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #1a1a2e;
    --color-text-primary: #1a1a2e;
    --color-text-secondary: #6c757d;
    --color-text-muted: #adb5bd;
    --color-border: #dee2e6;
    
    /* Overlay Colors */
    --color-overlay-light: rgba(255, 255, 255, 0.9);
    --color-overlay-dark: rgba(0, 0, 0, 0.7);
    --color-overlay-gradient: linear-gradient(135deg, rgba(26, 26, 46, 0.95), rgba(255, 107, 53, 0.3));
    
    /* Typography */
    --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Bebas Neue', sans-serif;
    --font-accent: 'Playfair Display', serif;
    
    /* Font Sizes - Fluid Typography */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    --text-3xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
    --text-4xl: clamp(2.5rem, 2rem + 3vw, 4rem);
    --text-5xl: clamp(3rem, 2rem + 5vw, 5rem);
    --text-6xl: clamp(4rem, 3rem + 6vw, 7rem);
    
    /* Font Weights */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    
    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
    
    /* Letter Spacing */
    --tracking-tighter: -0.05em;
    --tracking-tight: -0.025em;
    --tracking-normal: 0;
    --tracking-wide: 0.025em;
    --tracking-wider: 0.05em;
    --tracking-widest: 0.1em;
    
    /* Spacing Scale */
    --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;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    --space-40: 10rem;
    --space-48: 12rem;
    
    /* Container Widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1536px;
    
    /* Border Radius */
    --radius-none: 0;
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --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);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    --shadow-glow: 0 0 20px rgba(255, 107, 53, 0.3);
    --shadow-glow-lg: 0 0 40px rgba(255, 107, 53, 0.4);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-slower: 700ms ease;
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --transition-smooth: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    --z-preloader: 800;
    --z-cursor: 900;
    --z-max: 9999;
    
    /* Aspect Ratios */
    --aspect-video: 16 / 9;
    --aspect-square: 1 / 1;
    --aspect-portrait: 3 / 4;
    --aspect-landscape: 4 / 3;
    
    /* Breakpoints (for reference) */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
}

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

[data-theme="dark"] {
    --color-bg-primary: #0f0f0f;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #1a1a2e;
    --color-text-primary: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-text-muted: #808080;
    --color-border: #333333;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.6), 0 2px 4px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.7), 0 10px 10px -5px rgba(0, 0, 0, 0.5);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
    --shadow-glow: 0 0 25px rgba(255, 107, 53, 0.5);
    --shadow-glow-lg: 0 0 50px rgba(255, 107, 53, 0.6);
}

/* Dark mode specific overrides */
[data-theme="dark"] .navbar.scrolled {
    background: rgba(15, 15, 15, 0.98);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .navbar.scrolled .nav-link {
    color: #ffffff;
}

[data-theme="dark"] .navbar.scrolled .nav-link:hover,
[data-theme="dark"] .navbar.scrolled .nav-link.active {
    color: var(--color-primary);
}

[data-theme="dark"] .navbar.scrolled .logo .logo-text {
    color: #ffffff;
}

[data-theme="dark"] .navbar.scrolled .logo .logo-tagline {
    color: #b0b0b0;
}

[data-theme="dark"] .navbar.scrolled .hamburger .line {
    background: #ffffff;
}

[data-theme="dark"] .navbar:not(.scrolled) .theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

[data-theme="dark"] .nav-link {
    color: #ffffff;
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
    color: var(--color-primary);
}

[data-theme="dark"] .logo .logo-text {
    color: #ffffff;
}

[data-theme="dark"] .logo .logo-tagline {
    color: #b0b0b0;
}

[data-theme="dark"] .theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

[data-theme="dark"] .btn-outline {
    border-color: #ffffff;
    color: #ffffff;
}

[data-theme="dark"] .btn-outline:hover {
    background: #ffffff;
    color: #0f0f0f;
}

[data-theme="dark"] .social-link {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

[data-theme="dark"] .social-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #ffffff;
}

/* Hero social icons - always white and visible */
.hero-social {
    position: absolute;
    left: var(--space-6);
    top: 50%;
    transform: translateY(-50%);
    display: none;
    flex-direction: column;
    gap: var(--space-4);
}

@media (min-width: 1024px) {
    .hero-social {
        display: flex;
    }
}

.hero-social .social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff !important;
    font-size: var(--text-lg);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-full);
    background: rgba(0, 0, 0, 0.2);
    transition: all var(--transition-normal);
}

.hero-social .social-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #ffffff !important;
    transform: translateX(5px);
}

[data-theme="dark"] .hero-social .social-link {
    color: #ffffff !important;
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.1);
}

/* Contact social icons - visible in both modes */
.contact-social {
    margin-top: var(--space-6);
}

.contact-social h4 {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.contact-social .social-links {
    display: flex;
    gap: var(--space-3);
}

.contact-social .social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary) !important;
    transition: all var(--transition-normal);
}

.contact-social .social-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #ffffff !important;
    transform: translateY(-3px);
}

[data-theme="dark"] .contact-social .social-link {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: #ffffff !important;
}

/* Footer social icons - always white on dark background */
.footer-social {
    display: flex;
    gap: var(--space-3);
}

.footer-social .social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-base);
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #ffffff !important;
    transition: all var(--transition-normal);
}

.footer-social .social-link:hover {
    background: var(--color-primary);
    color: #ffffff !important;
    transform: translateY(-3px);
}

/* Mobile social icons in menu */
.mobile-social {
    display: flex;
    gap: var(--space-6);
}

.mobile-social .social-link {
    font-size: var(--text-xl);
    color: #ffffff !important;
    background: rgba(255, 255, 255, 0.1);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

.mobile-social .social-link:hover {
    color: #ffffff !important;
    background: var(--color-primary);
    transform: translateY(-3px);
}

[data-theme="dark"] .service-card,
[data-theme="dark"] .testimonial-card,
[data-theme="dark"] .blog-card,
[data-theme="dark"] .contact-form-wrapper {
    background: #1a1a1a;
    border-color: #333333;
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group textarea,
[data-theme="dark"] .form-group select {
    background: #252525;
    border-color: #444444;
    color: #ffffff;
}

[data-theme="dark"] .form-group select option {
    background: #252525;
    color: #ffffff;
}

[data-theme="dark"] .footer {
    background: #0a0a0a;
}

[data-theme="dark"] .footer .logo .logo-text {
    color: #ffffff;
}

[data-theme="dark"] .footer-column a,
[data-theme="dark"] .footer-column li {
    color: #b0b0b0;
}

[data-theme="dark"] .footer-column a:hover {
    color: var(--color-primary);
}

[data-theme="dark"] .skill-bar {
    background: #252525;
}

[data-theme="dark"] .award-item {
    background: #1a1a1a;
}

[data-theme="dark"] .swiper-btn {
    background: #1a1a1a;
    border-color: #444444;
    color: #ffffff;
}

[data-theme="dark"] .swiper-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

[data-theme="dark"] .hamburger .line {
    background: #ffffff;
}

/* Newsletter section in dark mode */
[data-theme="dark"] .newsletter-section {
    background: var(--color-bg-tertiary);
}

[data-theme="dark"] .newsletter-form input {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: #ffffff;
}

/* Custom cursor in dark mode */
[data-theme="dark"] .cursor-dot {
    background: var(--color-primary);
}

[data-theme="dark"] .cursor-outline {
    border-color: var(--color-primary);
}

/* ==========================================================================
   Gradient Definitions
   ========================================================================== */

:root {
    --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    --gradient-secondary: linear-gradient(135deg, var(--color-secondary), #16213e);
    --gradient-accent: linear-gradient(135deg, var(--color-accent), #ffaa00);
    --gradient-hero: linear-gradient(135deg, rgba(26, 26, 46, 0.95), rgba(255, 107, 53, 0.2));
    --gradient-text: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    --gradient-card: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.8) 100%);
}

/* ==========================================================================
   Animation Durations
   ========================================================================== */

:root {
    --animate-duration-fast: 0.3s;
    --animate-duration-normal: 0.5s;
    --animate-duration-slow: 0.8s;
    --animate-delay-100: 0.1s;
    --animate-delay-200: 0.2s;
    --animate-delay-300: 0.3s;
    --animate-delay-400: 0.4s;
    --animate-delay-500: 0.5s;
}