@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #2563eb;
    --secondary: #1e293b;
    --accent: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --grid-line: rgba(30, 41, 59, 0.05);
    --transition-base: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

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

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

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    background-color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 16px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
}

a, button {
    cursor: pointer;
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
}

nav a, .mobile-menu a {
    min-height: 44px;
}

/* Background Grid Pattern */
.bg-blueprint {
    background-image: 
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* Typography Customization */
h1, h2, h3, h4, .font-display {
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.1;
}

/* Custom Nav Styling */
nav {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--grid-line);
    transition: var(--transition-base);
}

.nav-link {
    position: relative;
    padding: 0.5rem 0;
    font-weight: 500;
    color: var(--text-main);
    transition: var(--transition-base);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Premium Button System */
.btn-premium {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    font-weight: 600;
    color: #fff;
    background-color: var(--secondary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: var(--transition-base);
    text-decoration: none;
}

.btn-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--primary);
    transition: var(--transition-base);
    z-index: 0;
}

.btn-premium:hover::before {
    left: 0;
}

.btn-premium span {
    position: relative;
    z-index: 10;
}

.btn-premium .icon {
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
    position: relative;
    z-index: 10;
}

.btn-premium:hover .icon {
    transform: translateX(4px);
}

/* Architectural Card System */
.card-panel {
    background: #fff;
    border: 1px solid var(--grid-line);
    padding: 2.5rem;
    transition: var(--transition-base);
    position: relative;
}

.card-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background-color: var(--primary);
    transition: var(--transition-base);
}

.card-panel:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px -12px rgba(30, 41, 59, 0.08);
}

.card-panel:hover::before {
    height: 100%;
}

/* Custom Hero Layout Elements */
.hero-split {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    min-height: 85vh;
    align-items: center;
}

@media (max-width: 1024px) {
    .hero-split {
        grid-template-columns: 1fr;
        padding-top: 8rem;
    }
}

.hero-image-container {
    position: relative;
    z-index: 10;
}

.hero-image-accent {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary);
    z-index: -1;
}

/* Section Dividers & Numbers */
.section-meta {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.section-meta::before {
    content: '';
    width: 2rem;
    height: 1px;
    background-color: var(--primary);
    margin-right: 1rem;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
    z-index: 110;
}

.mobile-menu-btn:hover {
    background-color: var(--accent);
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: #fff;
    z-index: 100;
    transition: var(--transition-base);
    padding: 6rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu .nav-link {
    font-size: 1.5rem;
    padding: 1rem;
}

.overlay {
    position: fixed;
    inset: 0;
    background: rgba(30, 41, 59, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-base);
    z-index: 90;
    backdrop-filter: blur(4px);
}

.overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* Close Button in Mobile Menu */
.mobile-menu-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    padding: 0.5rem;
}

/* Accessibility & Touch Targets */
a:focus-visible, 
button:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Image Fixes for Mobile */
@media (max-width: 768px) {
    .hero-split img,
    .portfolio-item img,
    .reveal img {
        height: 350px !important;
    }
    
    h1 { font-size: 2.5rem !important; }
    h2 { font-size: 2rem !important; }
}

/* Cookie Consent */
#cookie-consent {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%) translateY(200%);
    background: var(--secondary);
    color: #fff;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    z-index: 200;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    width: calc(100% - 2rem);
    max-width: 450px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

#cookie-consent.show {
    transform: translateX(-50%) translateY(0);
}

/* Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Step/Process Styling */
.process-step {
    position: relative;
    padding-left: 4rem;
    margin-bottom: 3rem;
}

.process-step::before {
    content: attr(data-step);
    position: absolute;
    left: 0;
    top: 0;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--grid-line);
    line-height: 1;
}

.process-step::after {
    content: '';
    position: absolute;
    left: 1.25rem;
    top: 3rem;
    bottom: -3rem;
    width: 1px;
    background: var(--grid-line);
}

.process-step:last-child::after {
    display: none;
}

/* Portfolio Hover */
.portfolio-item {
    overflow: hidden;
    position: relative;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(37, 99, 235, 0.9);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: var(--transition-base);
    transform: translateY(20px);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
    transform: translateY(0);
}