/* ===============================
   DESIGN TOKENS - CSS CUSTOM PROPERTIES
   =============================== */

:root {
    /* Colors - Brand */
    --color-primary: #2F6BFF;
    --color-primary-dark: #1F4FD8;
    --color-primary-light: #5B8CFF;
    
    /* Colors - Neutral */
    --color-white: #FFFFFF;
    --color-background: #F7F9FC;
    --color-surface: #FFFFFF;
    --color-border: #E6EAF0;
    --color-divider: #EEF1F6;
    
    /* Colors - Text */
    --color-text-heading: #0B1F44;
    --color-text-body: #5A6B8A;
    --color-text-muted: #8A96AD;
    --color-text-inverse: #FFFFFF;
    
    /* Colors - Status */
    --color-success: #3CCF91;
    --color-warning: #FFB020;
    --color-error: #FF5A5F;
    --color-info: #5B8CFF;
    
    /* Typography */
    --font-primary: 'Inter', 'SF Pro Display', 'Helvetica', 'Arial', sans-serif;
    --font-numeric: 'Inter', monospace;
    
    /* Typography Scale */
    --font-size-h1: 48px;
    --line-height-h1: 56px;
    --font-weight-h1: 700;
    --font-size-h2: 36px;
    --line-height-h2: 44px;
    --font-weight-h2: 700;
    --font-size-h3: 28px;
    --line-height-h3: 36px;
    --font-weight-h3: 600;
    --font-size-h4: 22px;
    --line-height-h4: 30px;
    --font-weight-h4: 600;
    --font-size-body: 16px;
    --line-height-body: 24px;
    --font-weight-body: 400;
    --font-size-body-small: 14px;
    --line-height-body-small: 20px;
    --font-size-caption: 12px;
    --line-height-caption: 16px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    
    /* Radius */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-round: 999px;
    
    /* Shadows */
    --shadow-sm: 0 4px 12px rgba(15, 30, 60, 0.06);
    --shadow-md: 0 8px 24px rgba(15, 30, 60, 0.10);
    --shadow-lg: 0 16px 40px rgba(15, 30, 60, 0.14);
    
    /* Motion */
    --duration-fast: 150ms;
    --duration-normal: 250ms;
    --duration-slow: 400ms;
    --easing-standard: cubic-bezier(0.4, 0.0, 0.2, 1);
    --easing-decelerate: cubic-bezier(0.0, 0.0, 0.2, 1);
    --easing-accelerate: cubic-bezier(0.4, 0.0, 1, 1);
    
    /* Breakpoints */
    --breakpoint-tablet: 768px;
    --breakpoint-desktop: 1200px;
}

/* ===============================
   RESET & BASE STYLES
   =============================== */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-primary);font-size:var(--font-size-body);line-height:var(--line-height-body);color:var(--color-text-body);background-color:var(--color-background);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}
@media (min-width:768px){.container{padding:0 var(--spacing-lg)}}

/* ===============================
   TYPOGRAPHY
   =============================== */

h1,h2,h3,h4,h5,h6{color:var(--color-text-heading);font-weight:var(--font-weight-h2)}
h1{font-size:var(--font-size-h1);line-height:var(--line-height-h1);font-weight:var(--font-weight-h1)}
h2{font-size:var(--font-size-h2);line-height:var(--line-height-h2);font-weight:var(--font-weight-h2)}
h3{font-size:var(--font-size-h3);line-height:var(--line-height-h3);font-weight:var(--font-weight-h3)}
h4{font-size:var(--font-size-h4);line-height:var(--line-height-h4);font-weight:var(--font-weight-h4)}
p{font-size:var(--font-size-body);line-height:var(--line-height-body)}
a{color:var(--color-primary);text-decoration:none;transition:color var(--duration-fast) var(--easing-standard)}
a:hover{color:var(--color-primary-dark)}

/* ===============================
   HEADER & NAVIGATION
   =============================== */

.header{position:absolute;top:0;left:0;right:0;background-color:transparent;height:72px;z-index:1000;box-shadow:none;transition:background-color var(--duration-normal) var(--easing-standard),box-shadow var(--duration-normal) var(--easing-standard)}
.header.scrolled{position:fixed;background-color:var(--color-primary);box-shadow:var(--shadow-md)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.nav-logo h2{color:var(--color-text-inverse);font-size:var(--font-size-h4);font-weight:var(--font-weight-h4)}
.nav-menu{display:flex;list-style:none;gap:var(--spacing-lg);align-items:center}
.nav-link{color:var(--color-text-inverse);font-size:var(--font-size-body);font-weight:500;transition:opacity var(--duration-fast) var(--easing-standard)}
.nav-link:hover{opacity:0.8}
.nav-toggle{display:none;flex-direction:column;background:none;border:none;cursor:pointer;gap:4px;padding:var(--spacing-sm)}
.nav-toggle span{width:24px;height:2px;background-color:var(--color-text-inverse);transition:all var(--duration-normal) var(--easing-standard)}

@media (max-width:767px){
    .nav-toggle{display:flex}
    .nav-menu{position:fixed;top:72px;left:0;right:0;background-color:var(--color-primary);flex-direction:column;padding:var(--spacing-lg);gap:var(--spacing-md);transform:translateX(-100%);transition:transform var(--duration-normal) var(--easing-standard);box-shadow:var(--shadow-md)}
    .nav-menu.active{transform:translateX(0)}
    .nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(6px,6px)}
    .nav-toggle.active span:nth-child(2){opacity:0}
    .nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}
    h1{font-size:32px;line-height:40px}
    h2{font-size:28px;line-height:36px}
    h3{font-size:24px;line-height:32px}
}

/* ===============================
   BUTTONS
   =============================== */

.btn{display:inline-flex;align-items:center;justify-content:center;padding:0 var(--spacing-lg);height:48px;border-radius:var(--radius-md);font-size:var(--font-size-body);font-weight:600;font-family:var(--font-primary);cursor:pointer;border:none;transition:all var(--duration-normal) var(--easing-standard);text-decoration:none}
.btn-primary{background-color:var(--color-primary);color:var(--color-text-inverse);box-shadow:0 4px 12px rgba(47,107,255,0.3);position:relative;overflow:hidden}
.btn-primary::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);transition:left 0.5s ease}
.btn-primary:hover{background-color:var(--color-primary-dark);color:var(--color-text-inverse);transform:translateY(-2px) scale(1.02);box-shadow:0 8px 24px rgba(47,107,255,0.5)}
.btn-primary:hover::before{left:100%}
.btn-primary:active{transform:translateY(0) scale(1);box-shadow:0 4px 12px rgba(47,107,255,0.3)}
.btn-secondary{background-color:var(--color-white);color:var(--color-primary);border:1px solid var(--color-primary)}
.btn-secondary:hover{background-color:var(--color-background)}
.btn-full{width:100%}

/* ===============================
   HERO SECTION
   =============================== */

.hero{margin-top:0;padding:calc(var(--spacing-xxl)*1.5) 0;position:relative;color:var(--color-text-inverse);overflow:hidden;min-height:100vh;display:flex;align-items:center;justify-content:center}
.hero-background{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero-bg-image{width:100%;height:100%;object-fit:cover;object-position:center;transform:scale(1);transition:transform 20s ease-out}
.hero:hover .hero-bg-image{transform:scale(1.05)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(47,107,255,0.75) 0%,rgba(31,79,216,0.85) 50%,rgba(15,30,60,0.7) 100%);z-index:1}
.hero-content{position:relative;z-index:2;text-align:center;max-width:900px;margin:0 auto;padding:72px var(--spacing-md) 0;animation:fadeInUp 0.8s ease-out}
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.hero-title{color:var(--color-text-inverse);margin-bottom:var(--spacing-lg);font-size:40px;line-height:48px;font-weight:700;text-shadow:0 2px 20px rgba(0,0,0,0.3);letter-spacing:-0.5px}
.hero-subtitle{font-size:18px;line-height:28px;color:rgba(255,255,255,0.95);margin-bottom:var(--spacing-xxl);font-weight:400;text-shadow:0 1px 10px rgba(0,0,0,0.2);max-width:700px;margin-left:auto;margin-right:auto}
.hero .btn-primary{font-size:18px;padding:0 var(--spacing-xl);height:56px;border-radius:var(--radius-lg);box-shadow:0 8px 24px rgba(47,107,255,0.4);letter-spacing:0.3px}
.hero .btn-primary:hover{background-color:var(--color-primary-dark);color:var(--color-text-inverse);transform:translateY(-3px) scale(1.03);box-shadow:0 14px 36px rgba(47,107,255,0.6)}
.hero .btn-primary:active{transform:translateY(-1px) scale(1.01);box-shadow:0 8px 24px rgba(47,107,255,0.4)}

@media (min-width:768px){
    .hero{padding:calc(var(--spacing-xxl)*2.5) 0;min-height:700px}
    .hero-title{font-size:56px;line-height:64px;margin-bottom:var(--spacing-xl)}
    .hero-subtitle{font-size:22px;line-height:32px;margin-bottom:calc(var(--spacing-xxl)*1.5)}
    .hero .btn-primary{font-size:20px;height:60px;padding:0 calc(var(--spacing-xl)*1.5)}
}

/* ===============================
   SECTIONS
   =============================== */

section{padding:var(--spacing-xxl) 0}
.section-title{text-align:center;margin-bottom:var(--spacing-md);font-size:32px;line-height:40px}
.section-subtitle{text-align:center;color:var(--color-text-muted);margin-bottom:var(--spacing-xl);font-size:var(--font-size-body)}
@media (min-width:768px){.section-title{font-size:var(--font-size-h2);line-height:var(--line-height-h2)}}

/* ===============================
   SERVICES SECTION
   =============================== */

.services{background-color:var(--color-surface)}
.services-grid{display:flex;flex-direction:column;gap:var(--spacing-lg);margin-top:var(--spacing-xl)}
.service-card{background-color:var(--color-surface);border-radius:var(--radius-lg);padding:0;box-shadow:var(--shadow-sm);transition:transform var(--duration-normal) var(--easing-standard),box-shadow var(--duration-normal) var(--easing-standard);border:1px solid var(--color-border);overflow:hidden;display:flex;flex-direction:column}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.service-image-wrapper{width:100%;height:200px;overflow:hidden;position:relative}
.service-image{width:100%;height:100%;object-fit:cover;object-position:center;transition:transform var(--duration-slow) var(--easing-standard)}
.service-card:hover .service-image{transform:scale(1.1)}
.service-card .service-title{padding:var(--spacing-md) var(--spacing-lg) var(--spacing-sm);margin-bottom:0}
.service-card .service-description{padding:0 var(--spacing-lg) var(--spacing-lg);flex:1}
.service-title{margin-bottom:var(--spacing-sm);font-size:var(--font-size-h4)}
.service-description{color:var(--color-text-body);font-size:var(--font-size-body);line-height:var(--line-height-body)}

@media (min-width:768px){
    .services-grid{flex-direction:row;flex-wrap:wrap}
    .service-card{flex:1 1 calc(50% - var(--spacing-lg));min-width:280px}
}
@media (min-width:1200px){.service-card{flex:1 1 calc(25% - var(--spacing-lg))}}

/* ===============================
   STATISTICS SECTION
   =============================== */

.statistics{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);padding:var(--spacing-xxl) 0;color:var(--color-text-inverse)}
.stats-grid{display:flex;flex-direction:column;gap:var(--spacing-xl);align-items:center}
.stat-item{text-align:center;padding:var(--spacing-lg);width:100%;max-width:300px}
.stat-number{font-size:48px;font-weight:700;line-height:1;color:var(--color-text-inverse);margin-bottom:var(--spacing-sm);font-family:var(--font-numeric);position:relative}
.stat-label{font-size:var(--font-size-body);color:rgba(255,255,255,0.9);font-weight:500;text-transform:uppercase;letter-spacing:1px}

@media (min-width:768px){
    .stats-grid{flex-direction:row;justify-content:space-around;gap:var(--spacing-lg)}
    .stat-item{flex:1;max-width:none}
    .stat-number{font-size:64px}
    .stat-label{font-size:var(--font-size-body-small)}
}
@media (min-width:1200px){.stat-number{font-size:72px}}

/* ===============================
   FEATURES SECTION
   =============================== */

.features{background-color:var(--color-background)}
.features-list{display:flex;flex-direction:column;gap:var(--spacing-lg);margin-top:var(--spacing-xl)}
.feature-item{display:flex;gap:var(--spacing-md);background-color:var(--color-surface);padding:var(--spacing-lg);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--color-border)}
.feature-icon{flex-shrink:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background-color:var(--color-primary);color:var(--color-text-inverse);border-radius:var(--radius-round);font-weight:700;font-size:18px}
.feature-content{flex:1}
.feature-title{margin-bottom:var(--spacing-xs);font-size:var(--font-size-h4)}
.feature-description{color:var(--color-text-body);font-size:var(--font-size-body)}
@media (min-width:768px){.features-list{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-lg)}}

/* ===============================
   ABOUT SECTION
   =============================== */

.about{background-color:var(--color-surface)}
.about-content{max-width:1200px;margin:0 auto;display:flex;flex-direction:column;gap:var(--spacing-xl);align-items:center}
.about-text-wrapper{flex:1;text-align:center}
.about-image-wrapper{width:100%;max-width:600px;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.about-image{width:100%;height:auto;display:block;object-fit:cover}
.about-text{margin-bottom:var(--spacing-md);font-size:var(--font-size-body);line-height:var(--line-height-body);color:var(--color-text-body)}
.about-text:last-child{margin-bottom:0}
@media (min-width:768px){
    .about-content{flex-direction:row;align-items:center;text-align:left}
    .about-text-wrapper{text-align:left}
    .about-image-wrapper{flex:0 0 45%}
}

/* ===============================
   CONTACT SECTION
   =============================== */

.contact{background-color:var(--color-background)}
.contact-phone{display:flex;justify-content:center;align-items:center;margin:var(--spacing-xl) 0}
.phone-link{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-md);padding:var(--spacing-lg) var(--spacing-xxl);background-color:var(--color-white);color:var(--color-primary);border:2px solid var(--color-primary);border-radius:var(--radius-lg);font-size:24px;font-weight:700;text-decoration:none;transition:all var(--duration-normal) var(--easing-standard);box-shadow:var(--shadow-sm);min-width:280px}
.phone-link:hover{background-color:var(--color-primary);color:var(--color-text-inverse);border-color:var(--color-primary);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.phone-link:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.phone-icon{font-size:32px;line-height:1;transition:transform var(--duration-normal) var(--easing-standard)}
.phone-link:hover .phone-icon{transform:scale(1.1)}
.phone-number{font-size:24px;font-weight:700;letter-spacing:0.5px}
.contact-info{max-width:600px;margin:var(--spacing-xl) auto 0;display:flex;flex-direction:column;gap:var(--spacing-md);text-align:center}
.contact-item{font-size:var(--font-size-body);color:var(--color-text-body)}
.contact-item strong{color:var(--color-text-heading);margin-right:var(--spacing-sm)}
@media (min-width:768px){
    .phone-link{padding:var(--spacing-xl) calc(var(--spacing-xxl)*1.5);font-size:28px;min-width:320px}
    .phone-icon{font-size:36px}
    .phone-number{font-size:28px}
}

/* ===============================
   FOOTER
   =============================== */

.footer{background-color:var(--color-text-heading);color:var(--color-text-inverse);padding:var(--spacing-xl) 0 var(--spacing-lg)}
.footer-content{display:flex;flex-direction:column;gap:var(--spacing-lg);margin-bottom:var(--spacing-lg)}
.footer-section{flex:1}
.footer-title{color:var(--color-text-inverse);font-size:var(--font-size-h4);margin-bottom:var(--spacing-sm)}
.footer-subtitle{color:var(--color-text-inverse);font-size:var(--font-size-body);font-weight:600;margin-bottom:var(--spacing-sm)}
.footer-text{color:rgba(255,255,255,0.8);font-size:var(--font-size-body-small)}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:var(--spacing-sm)}
.footer-links a{color:rgba(255,255,255,0.8);font-size:var(--font-size-body-small);transition:color var(--duration-fast) var(--easing-standard)}
.footer-links a:hover{color:var(--color-text-inverse)}
.footer-bottom{text-align:center;padding-top:var(--spacing-lg);border-top:1px solid rgba(255,255,255,0.1);color:rgba(255,255,255,0.6);font-size:var(--font-size-body-small)}
@media (min-width:768px){.footer-content{flex-direction:row}}