/**
 * Xiyasome - IT Consulting Landing Page
 * Main Stylesheet
 * 
 * Table of Contents:
 * 1. Variables
 * 2. Base & Typography
 * 3. Layout & Containers
 * 4. Header
 * 5. Hero Section
 * 6. Services Section
 * 7. Process Section
 * 8. Tech Stack Section
 * 9. Metrics Section
 * 10. Case Studies Section
 * 11. Certifications Section
 * 12. Pricing Section
 * 13. Contact Section
 * 14. Thankyou Page
 * 15. Footer
 * 16. Legal Pages
 * 17. Buttons & Forms
 * 18. Utilities
 * 19. Animations
 * 20. Media Queries
 */

/* ===================================
   1. Variables
   =================================== */
:root {
    /* Colors */
    --color-background: #0D0D0D;
    --color-accent: #00FFFF;
    --color-accent-alpha: rgba(0, 255, 255, 0.1);
    --color-secondary-accent: #8A2BE2;
    --color-secondary-accent-alpha: rgba(138, 43, 226, 0.1);
    --color-text: #FFFFFF;
    --color-text-muted: rgba(255, 255, 255, 0.7);
    --color-border: rgba(255, 255, 255, 0.1);
    --color-overlay: rgba(13, 13, 13, 0.8);
    --color-success: #4CAF50;
    --color-error: #FF5252;
    
    /* Typography */
    --font-primary: 'Fira Sans', sans-serif;
    --font-secondary: 'Share Tech Mono', monospace;
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-md: 1.125rem;    /* 18px */
    --font-size-lg: 1.25rem;     /* 20px */
    --font-size-xl: 1.5rem;      /* 24px */
    --font-size-2xl: 2rem;       /* 32px */
    --font-size-3xl: 2.5rem;     /* 40px */
    --font-size-4xl: 3rem;       /* 48px */
    --font-size-5xl: 4rem;       /* 64px */
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-loose: 1.8;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --space-xs: 0.25rem;     /* 4px */
    --space-sm: 0.5rem;      /* 8px */
    --space-md: 1rem;        /* 16px */
    --space-lg: 1.5rem;      /* 24px */
    --space-xl: 2rem;        /* 32px */
    --space-2xl: 3rem;       /* 48px */
    --space-3xl: 4rem;       /* 64px */
    --space-4xl: 6rem;       /* 96px */
    --space-5xl: 8rem;       /* 128px */
    
    /* Borders */
    --border-radius-sm: 0.25rem;    /* 4px */
    --border-radius-md: 0.5rem;     /* 8px */
    --border-radius-lg: 1rem;       /* 16px */
    --border-radius-xl: 2rem;       /* 32px */
    --border-radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
    --shadow-glow-accent: 0 0 15px rgba(0, 255, 255, 0.5);
    --shadow-glow-secondary: 0 0 15px rgba(138, 43, 226, 0.5);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-indices */
    --z-index-negative: -1;
    --z-index-base: 1;
    --z-index-header: 100;
    --z-index-modal: 200;
    --z-index-overlay: 300;
    --z-index-tooltip: 400;
    --z-index-backtotop: 500;
    
    /* Container */
    --container-max-width: 1280px;
    --container-padding: 1.5rem;
    
    /* Device Breakpoints */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
    --breakpoint-2xl: 1400px;
}

/* ===================================
   2. Base & Typography
   =================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-background);
    overflow-x: hidden;
    min-height: 100vh;
}

body.menu-open {
    overflow: hidden;
}

option {
    color: var(--color-background);
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--space-md);
    line-height: var(--line-height-tight);
    font-weight: var(--font-weight-bold);
}

h1 {
    font-size: var(--font-size-3xl);
}

h2 {
    font-size: var(--font-size-2xl);
}

h3 {
    font-size: var(--font-size-xl);
}

h4 {
    font-size: var(--font-size-lg);
}

h5 {
    font-size: var(--font-size-md);
}

h6 {
    font-size: var(--font-size-base);
}

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

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

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

ul, ol {
    margin-bottom: var(--space-md);
    padding-left: var(--space-xl);
}

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

/* ===================================
   3. Layout & Containers
   =================================== */
.header__container,
.footer__container,
.section__header,
.legal__container,
.thankyou__container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section__header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section__title {
    position: relative;
    display: inline-block;
    margin-bottom: var(--space-md);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
}

.section__title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -0.5rem;
    width: 3rem;
    height: 0.125rem;
    background: var(--color-accent);
    transform: translateX(-50%);
}

.section__subtitle {
    max-width: 38rem;
    margin: 0 auto;
    color: var(--color-text-muted);
    font-size: var(--font-size-md);
}

/* ===================================
   4. Header
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-index-header);
    padding: var(--space-md) 0;
    transition: background-color var(--transition-normal),
                padding var(--transition-normal),
                box-shadow var(--transition-normal);
}

.header--sticky {
    background-color: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--space-sm) 0;
    box-shadow: var(--shadow-md);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    display: flex;
    align-items: center;
    height: 50px;
    z-index: var(--z-index-header);
}

.header__logo img {
    height: 100%;
    width: auto;
}

.header__nav {
    position: relative;
}

.header__toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 2rem;
    height: 1.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: var(--z-index-header);
}

.header__toggle-bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    transition: transform var(--transition-normal),
                opacity var(--transition-normal);
}

.header__toggle--active .header__toggle-bar:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
}

.header__toggle--active .header__toggle-bar:nth-child(2) {
    transform: translateY(-4px) rotate(-45deg);
}

.header__menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 300px;
    background-color: var(--color-background);
    padding: 5rem var(--space-lg) var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: var(--z-index-base);
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.header__menu--active {
    transform: translateX(0);
}

.header__menu-item {
    list-style: none;
    margin-bottom: var(--space-md);
}

.header__menu-link {
    display: inline-block;
    color: var(--color-text);
    font-size: var(--font-size-md);
    transition: color var(--transition-fast);
    position: relative;
    padding: var(--space-xs) 0;
}

.header__menu-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-normal);
}

.header__menu-link:hover {
    color: var(--color-accent);
}

.header__menu-link:hover::after {
    width: 100%;
}

.header__menu-link--accent {
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    border-radius: var(--border-radius-full);
    padding: var(--space-xs) var(--space-md);
}

.header__menu-link--accent:hover {
    background-color: var(--color-accent);
    color: var(--color-background);
}

.header__menu-link--accent::after {
    display: none;
}

/* ===================================
   5. Hero Section
   =================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4xl) var(--container-padding);
    overflow: hidden;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-index-negative);
    background: center top url(../images/img00.jpg) no-repeat;
    background-size: cover;
    opacity: .5;
}

.hero__circles {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero__content {
    text-align: center;
    max-width: 800px;
    padding: var(--space-xl);
    position: relative;
    z-index: var(--z-index-base);
    border-radius: var(--border-radius-lg);
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.05), rgba(138, 43, 226, 0.05));
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(5px);
}

.hero__title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-lg);
    line-height: 1.2;
}

.hero__title--accent {
    color: var(--color-accent);
    font-family: var(--font-secondary);
    position: relative;
    display: inline-block;
}

.hero__title--accent::after {
    content: '';
    position: absolute;
    bottom: 0.125em;
    left: 0;
    width: 100%;
    height: 0.1em;
    background-color: var(--color-secondary-accent);
    z-index: var(--z-index-negative);
    opacity: 0.3;
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.hero__cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===================================
   6. Services Section
   =================================== */
.services {
    padding: var(--space-4xl) 0;
    background-color: rgba(20, 20, 20, 0.5);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.service__card {
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.03), rgba(138, 43, 226, 0.03));
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--space-xl);
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.service__card:hover {
    transform: translateY(-0.5rem);
    box-shadow: var(--shadow-glow-accent);
    border-color: var(--color-accent);
}

.service__icon {
    font-size: var(--font-size-2xl);
    color: var(--color-accent);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-full);
    background-color: var(--color-accent-alpha);
}

.service__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
}

.service__description {
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* ===================================
   7. Process Section
   =================================== */
.process {
    padding: var(--space-4xl) 0;
    background-color: var(--color-background);
}

.process__flow {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.process__step {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-xl);
    padding: var(--space-lg);
    border-radius: var(--border-radius-md);
    position: relative;
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.02), rgba(138, 43, 226, 0.02));
    border: 1px solid var(--color-border);
    transition: background var(--transition-normal),
                box-shadow var(--transition-normal),
                transform var(--transition-normal);
}

.process__step::before {
    content: attr(data-step);
    position: absolute;
    top: 0;
    left: 0;
    font-family: var(--font-secondary);
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    color: rgba(255, 255, 255, 0.03);
    line-height: 1;
    z-index: var(--z-index-negative);
}

.process__step--active {
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.05), rgba(138, 43, 226, 0.05));
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow-accent);
    transform: translateX(1rem);
}

.process__step-content {
    flex: 1;
}

.process__step-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-sm);
}

.process__step-description {
    color: var(--color-text-muted);
    margin-bottom: 0;
}

.process__step-icon {
    margin-left: var(--space-lg);
    font-size: var(--font-size-xl);
    color: var(--color-accent);
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-full);
    background-color: var(--color-accent-alpha);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ===================================
   8. Tech Stack Section
   =================================== */
.tech-stack {
    padding: var(--space-4xl) 0;
    background-color: rgba(20, 20, 20, 0.5);
}

.tech-stack__showcase {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-xl);
}

.tech-stack__category {
    margin-bottom: var(--space-xl);
}

.tech-stack__category-title {
    font-size: var(--font-size-lg);
    color: var(--color-accent);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
}

.tech-stack__items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tech-stack__item {
    padding: var(--space-sm) var(--space-md);
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-full);
    font-family: var(--font-secondary);
    font-size: var(--font-size-sm);
    transition: background-color var(--transition-fast),
                color var(--transition-fast),
                transform var(--transition-fast);
    cursor: default;
}

.tech-stack__item:hover {
    background-color: var(--color-accent);
    color: var(--color-background);
    transform: translateY(-2px);
}

/* ===================================
   9. Metrics Section
   =================================== */
.metrics {
    position: relative;
    padding: var(--space-4xl) 0;
    background-color: var(--color-background);
    overflow: hidden;
}

.metrics__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-index-negative);
}

.metrics__circles {
    position: relative;
    width: 100%;
    height: 100%;
}

.metrics__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    position: relative;
}

.metrics__item {
    text-align: center;
    padding: var(--space-lg);
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.05), rgba(138, 43, 226, 0.05));
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.metrics__item:hover {
    transform: translateY(-0.5rem);
}

.metrics__number {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-accent);
    font-family: var(--font-secondary);
}

.metrics__symbol {
    font-size: var(--font-size-xl);
    color: var(--color-accent);
    font-family: var(--font-secondary);
}

.metrics__label {
    margin-top: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ===================================
   10. Case Studies Section
   =================================== */
.case-studies {
    padding: var(--space-4xl) 0;
    background-color: rgba(20, 20, 20, 0.5);
}

.case-studies__slider {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    position: relative;
}

.case-studies__track {
    display: grid;
    gap: var(--space-lg);
    transition: transform var(--transition-normal);
}

.case-study {
    min-width: 100%;
    display: flex;
    flex-direction: column;
    padding: var(--space-md);
    gap: var(--space-md);
}

.case-study__image {
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    margin-bottom: var(--space-lg);
    aspect-ratio: 16 / 9;
}

.case-study__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.case-study:hover .case-study__image img {
    transform: scale(1.05);
}

.case-study__content {
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.03), rgba(138, 43, 226, 0.03));
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--space-lg);
    flex: 1;
}

.case-study__category {
    display: inline-block;
    font-size: var(--font-size-xs);
    background-color: var(--color-accent-alpha);
    color: var(--color-accent);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--border-radius-full);
    margin-bottom: var(--space-sm);
}

.case-study__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
}

.case-study__description {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.case-study__metrics {
    display: flex;
    gap: var(--space-lg);
}

.case-study__metric {
    display: flex;
    flex-direction: column;
}

.case-study__metric-value {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-accent);
}

.case-study__metric-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.case-studies__navigation {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.case-studies__nav-button {
    background-color: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color var(--transition-fast),
                color var(--transition-fast),
                border-color var(--transition-fast);
}

.case-studies__nav-button:hover {
    background-color: var(--color-accent);
    color: var(--color-background);
    border-color: var(--color-accent);
}

.case-studies__dots {
    display: flex;
    gap: var(--space-sm);
}

.case-studies__dot {
    width: 10px;
    height: 10px;
    border-radius: var(--border-radius-full);
    background-color: var(--color-border);
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-fast),
                transform var(--transition-fast);
}

.case-studies__dot:hover {
    background-color: var(--color-accent);
}

.case-studies__dot--active {
    background-color: var(--color-accent);
    transform: scale(1.2);
}

/* ===================================
   11. Certifications Section
   =================================== */
.certifications {
    padding: var(--space-4xl) 0;
    background-color: var(--color-background);
}

.certifications__grid {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.certification {
    text-align: center;
    padding: var(--space-lg);
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.02), rgba(138, 43, 226, 0.02));
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
}

.certification:hover {
    transform: translateY(-0.5rem);
    box-shadow: var(--shadow-glow-accent);
    border-color: var(--color-accent);
}

.certification__icon {
    font-size: var(--font-size-xl);
    color: var(--color-accent);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-full);
    background-color: var(--color-accent-alpha);
    margin-left: auto;
    margin-right: auto;
}

.certification__title {
    font-size: var(--font-size-md);
    margin-bottom: var(--space-sm);
}

.certification__description {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

/* ===================================
   12. Pricing Section
   =================================== */
.pricing {
    padding: var(--space-4xl) 0;
    background-color: rgba(20, 20, 20, 0.5);
}

.pricing__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.pricing__toggle-option {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.pricing__toggle-option--active {
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
}

.pricing__toggle-discount {
    display: inline-block;
    font-size: var(--font-size-xs);
    background-color: var(--color-secondary-accent-alpha);
    color: var(--color-secondary-accent);
    padding: 0 var(--space-xs);
    border-radius: var(--border-radius-sm);
}

.pricing__toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.pricing__toggle-input {
    opacity: 0;
    width: 0;
    height: 0;
}

.pricing__toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-border);
    transition: background-color var(--transition-fast);
    border-radius: var(--border-radius-full);
}

.pricing__toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: transform var(--transition-fast);
    border-radius: 50%;
}

.pricing__toggle-input:checked + .pricing__toggle-slider {
    background-color: var(--color-accent);
}

.pricing__toggle-input:checked + .pricing__toggle-slider:before {
    transform: translateX(30px);
}

.pricing__grid {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.pricing__card {
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.03), rgba(138, 43, 226, 0.03));
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
    position: relative;
}

.pricing__card:hover {
    transform: translateY(-0.5rem);
    box-shadow: var(--shadow-md);
}

.pricing__card--featured {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow-accent);
    transform: translateY(-1rem) scale(1.03);
    z-index: var(--z-index-base);
}

.pricing__card--featured:hover {
    transform: translateY(-1.5rem) scale(1.03);
}

.pricing__badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-accent);
    color: var(--color-background);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--border-radius-full);
}

.pricing__header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.pricing__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-md);
}

.pricing__price {
    display: flex;
    align-items: baseline;
    justify-content: center;
}

.pricing__currency {
    font-size: var(--font-size-lg);
    margin-right: var(--space-xs);
    color: var(--color-text-muted);
}

.pricing__amount {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-accent);
    font-family: var(--font-secondary);
}

.pricing__period {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-left: var(--space-xs);
}

.pricing__features {
    list-style: none;
    padding: 0;
    margin-bottom: var(--space-xl);
    flex: 1;
}

.pricing__feature {
    padding: var(--space-sm) 0;
    position: relative;
    padding-left: var(--space-lg);
}

.pricing__feature::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.pricing__feature--disabled {
    color: var(--color-text-muted);
    text-decoration: line-through;
}

.pricing__feature--disabled::before {
    content: '✕';
    color: var(--color-text-muted);
}

.pricing__button {
    margin-top: auto;
    width: 100%;
    text-align: center;
}

/* ===================================
   13. Contact Section
   =================================== */
.contact {
    padding: var(--space-4xl) 0;
    background-color: var(--color-background);
}

.contact__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
}

.contact__info {
    padding-right: var(--space-xl);
}

.contact__title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-md);
}

.contact__subtitle {
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.contact__details {
    margin-top: var(--space-xl);
}

.contact__detail {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-md);
}

.contact__detail i {
    color: var(--color-accent);
    margin-right: var(--space-md);
    width: 20px;
    text-align: center;
}

.contact__form-container {
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.03), rgba(138, 43, 226, 0.03));
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--space-xl);
}

.contact__form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form__group {
    position: relative;
    margin-bottom: var(--space-md);
}

.form__group:nth-child(5) {
    grid-column: 1 / -1;
}

.form__group:nth-child(6) {
    grid-column: 1 / -1;
}

.form__group:last-child {
    grid-column: 1 / -1;
    margin-bottom: 0;
}

.form__input {
    width: 100%;
    padding: var(--space-md);
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast),
                box-shadow var(--transition-fast);
}

.form__input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent-alpha);
}

.form__input::placeholder {
    color: transparent;
}

.form__input:placeholder-shown + .form__label {
    font-size: var(--font-size-base);
    top: 50%;
    transform: translateY(-50%);
}

.form__label {
    position: absolute;
    top: 0;
    left: var(--space-md);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    pointer-events: none;
    transition: top var(--transition-fast),
                font-size var(--transition-fast),
                transform var(--transition-fast);
    background-color: var(--color-background);
    padding: 0 var(--space-xs);
}

.form__input:focus + .form__label,
.form__input--has-value + .form__label {
    top: 0;
    font-size: var(--font-size-xs);
    transform: translateY(-50%);
    color: var(--color-accent);
}

.form__group--focused .form__label {
    color: var(--color-accent);
}

.form__textarea {
    min-height: 150px;
    resize: vertical;
}

.form__select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2300FFFF' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-md) top 50%;
    background-size: 16px;
    padding-right: var(--space-2xl);
}

.form__group--checkbox {
    display: flex;
    align-items: flex-start;
}

.form__checkbox {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.form__checkbox-label {
    position: relative;
    padding-left: 30px;
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: var(--line-height-normal);
}

.form__checkbox-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 20px;
    height: 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    background-color: rgba(255, 255, 255, 0.05);
    transition: background-color var(--transition-fast),
                border-color var(--transition-fast);
}

.form__checkbox-label::after {
    content: '';
    position: absolute;
    left: 9px;
    top: 4px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.form__checkbox:checked + .form__checkbox-label::before {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
}

.form__checkbox:checked + .form__checkbox-label::after {
    opacity: 1;
}

.form__checkbox:focus + .form__checkbox-label::before {
    box-shadow: 0 0 0 2px var(--color-accent-alpha);
}

.form__submit {
    margin-top: var(--space-md);
}

/* ===================================
   14. Thankyou Page
   =================================== */
.thankyou {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4xl) var(--container-padding);
    overflow: hidden;
}

.thankyou__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-index-negative);
}

.thankyou__circles {
    position: relative;
    width: 100%;
    height: 100%;
}

.thankyou__container {
    text-align: center;
    max-width: 800px;
    padding: var(--space-2xl);
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.05), rgba(138, 43, 226, 0.05));
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: var(--z-index-base);
}

.thankyou__icon {
    font-size: var(--font-size-4xl);
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
}

.thankyou__title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-lg);
}

.thankyou__message {
    margin-bottom: var(--space-xl);
    color: var(--color-text-muted);
}

.thankyou__details {
    margin-bottom: var(--space-xl);
    padding: var(--space-md);
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius-md);
    display: inline-block;
}

.thankyou__detail {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
    text-align: left;
}

.thankyou__detail:last-child {
    margin-bottom: 0;
}

.thankyou__detail-label {
    color: var(--color-text-muted);
    font-weight: var(--font-weight-medium);
}

.thankyou__detail-value {
    color: var(--color-accent);
    font-family: var(--font-secondary);
}

.thankyou__actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===================================
   15. Footer
   =================================== */
.footer {
    padding: var(--space-2xl) 0 var(--space-lg);
    background-color: rgba(10, 10, 10, 0.8);
    border-top: 1px solid var(--color-border);
}

.footer__container {
    display: grid;
    gap: var(--space-lg);
    align-items: center;
    text-align: center;
}

.footer__logo {
    height: 40px;
    display: flex;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.footer__logo img {
    height: 100%;
    width: auto;
}

.footer__slogan {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
    max-width: 500px;
}

.footer__nav {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.footer__link {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
    font-size: var(--font-size-sm);
}

.footer__link:hover {
    color: var(--color-accent);
}

.footer__copyright {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ===================================
   16. Legal Pages
   =================================== */
.legal {
    padding: var(--space-5xl) 0 var(--space-3xl);
}

.legal__container {
    max-width: 800px;
}

.legal__title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-sm);
}

.legal__updated {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-2xl);
}

.legal__content {
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.02), rgba(138, 43, 226, 0.02));
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.legal__heading {
    font-size: var(--font-size-xl);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    color: var(--color-accent);
}

.legal__heading:first-child {
    margin-top: 0;
}

.legal__subheading {
    font-size: var(--font-size-lg);
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
}

.legal__list {
    margin-bottom: var(--space-lg);
}

.legal__list li {
    margin-bottom: var(--space-sm);
}

.legal__contact {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius-md);
}

.legal__back {
    text-align: center;
}

/* ===================================
   17. Buttons & Forms
   =================================== */
.button {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--border-radius-full);
    font-weight: var(--font-weight-medium);
    text-align: center;
    cursor: pointer;
    transition: background-color var(--transition-fast),
                color var(--transition-fast),
                box-shadow var(--transition-fast),
                transform var(--transition-fast);
    text-decoration: none;
    border: none;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
}

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

.button--primary:hover {
    background-color: var(--color-accent);
    color: var(--color-background);
    box-shadow: var(--shadow-glow-accent);
    transform: translateY(-2px);
}

.button--secondary {
    background-color: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
}

.button--secondary:hover {
    background-color: var(--color-accent-alpha);
    color: var(--color-accent);
    transform: translateY(-2px);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    border-radius: var(--border-radius-full);
    background-color: var(--color-accent);
    color: var(--color-background);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(1rem);
    transition: opacity var(--transition-normal),
                visibility var(--transition-normal),
                transform var(--transition-normal),
                background-color var(--transition-fast);
    z-index: var(--z-index-backtotop);
}

.back-to-top--visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--color-secondary-accent);
}

/* ===================================
   18. Utilities
   =================================== */
.floating-circle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent-alpha), var(--color-secondary-accent-alpha));
    opacity: 0.2;
    animation: float infinite alternate ease-in-out;
}

/* ===================================
   19. Animations
   =================================== */
@keyframes float {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }
    100% {
        transform: translate(30px, 30px) rotate(15deg);
    }
}

/* ===================================
   20. Media Queries
   =================================== */
/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
    .hero__title {
        font-size: var(--font-size-4xl);
    }
    
    .thankyou__container {
        padding: var(--space-3xl);
    }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
    .header__toggle {
        display: none;
    }
    
    .header__menu {
        position: static;
        transform: none;
        display: flex;
        background: none;
        padding: 0;
        max-width: none;
        box-shadow: none;
    }
    
    .header__menu-item {
        margin-bottom: 0;
        margin-left: var(--space-lg);
    }
    
    .process__flow {
        padding-left: var(--space-3xl);
    }
    
    .contact__container {
        grid-template-columns: 1fr 1fr;
    }
    
    .case-study {
        flex-direction: row;
        align-items: center;
    }
    
    .case-study__image {
        width: 40%;
        margin-bottom: 0;
    }
    
    .case-study__content {
        width: 60%;
    }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
    .hero__title {
        font-size: var(--font-size-5xl);
    }
    
    .section__title {
        font-size: var(--font-size-3xl);
    }
    
    .footer__container {
        grid-template-columns: 2fr 3fr 2fr;
        text-align: left;
        align-items: flex-start;
    }
    
    .footer__logo {
        margin-bottom: 0;
    }
    
    .footer__slogan {
        margin-bottom: 0;
    }
    
    .footer__nav {
        margin-bottom: 0;
        justify-content: center;
    }

    .footer__copyright {
        text-align: right;
    }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    :root {
        --container-padding: 2rem;
    }
    
    .hero__content {
        padding: var(--space-2xl);
    }
}