/* ===================================
   CSS RESET & BASE STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===================================
   DESIGN SYSTEM - CSS VARIABLES
   =================================== */
:root {
    /* Color Palette */
    --primary-dark: #0a1628;
    --primary-blue: #1e3a8a;
    --accent-cyan: #06b6d4;
    --accent-purple: #7c3aed;
    --accent-pink: #ec4899;
    --text-white: #ffffff;
    --text-gray: #cbd5e1;
    --text-light: #f1f5f9;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0a1628 0%, #1e3a8a 50%, #3730a3 100%);
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #7c3aed 50%, #ec4899 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(10, 22, 40, 0.95) 0%, rgba(30, 58, 138, 0.8) 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;
    --font-size-4xl: 4rem;

    /* Effects */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.4);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===================================
   TYPOGRAPHY
   =================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800;900&display=swap');

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-light);
    background: var(--primary-dark);
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

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

/* ===================================
   HEADER & NAVIGATION
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-normal);
}

.header.scrolled {
    background: rgba(10, 22, 40, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
    outline: none;
}

/* 3D SVG logo mark */
.logo-svg {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    overflow: visible;
    transition: transform 0.3s ease, filter 0.3s ease;
    filter: drop-shadow(0 0 7px rgba(6, 182, 212, 0.45));
}

.logo:hover .logo-svg {
    transform: scale(1.1) rotate(-3deg);
    filter: drop-shadow(0 0 14px rgba(124, 58, 237, 0.7));
}

/* Wordmark + tagline stacked */
.logo-text-stack {
    display: flex;
    flex-direction: column;
    gap: 1px;
    line-height: 1;
}

.logo-wordmark {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #e0f2fe 0%, #06b6d4 50%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: opacity 0.2s ease;
}

.logo-tagline {
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(148, 163, 184, 0.75);
    transition: color 0.2s ease;
}

.logo:hover .logo-wordmark {
    opacity: 0.85;
}

.logo:hover .logo-tagline {
    color: rgba(6, 182, 212, 0.85);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-menu a {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: var(--transition-normal);
}

.nav-menu a:hover {
    color: var(--text-white);
}

.nav-menu a:hover::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--gradient-primary);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(124, 58, 237, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.2) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, #ffffff 0%, #06b6d4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
}

.hero .tagline {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    color: var(--text-gray);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--gradient-accent);
    color: var(--text-white);
    text-decoration: none;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: var(--shadow-glow);
    transition: var(--transition-normal);
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
    border: none;
    cursor: pointer;
    font-size: var(--font-size-lg);
}

.cta-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 40px rgba(124, 58, 237, 0.6);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   SECTIONS
   =================================== */
.section {
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: clamp(2rem, 5vw, 3rem);
    background: linear-gradient(135deg, #ffffff 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: var(--font-size-lg);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
}

/* ===================================
   ABOUT SECTION
   =================================== */
.about {
    background: linear-gradient(180deg, var(--primary-dark) 0%, #1a2642 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text {
    opacity: 0;
    transform: translateX(-50px);
    transition: var(--transition-slow);
}

.about-text.visible {
    opacity: 1;
    transform: translateX(0);
}

.about-text p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-visual {
    background: var(--gradient-accent);
    border-radius: 20px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateX(50px);
    transition: var(--transition-slow);
}

.about-visual.visible {
    opacity: 1;
    transform: translateX(0);
}

.about-visual::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%) rotate(45deg);
    }

    100% {
        transform: translateX(100%) rotate(45deg);
    }
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 900;
    color: var(--text-white);
}

.stat-label {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.8);
}

/* ===================================
   SERVICES SECTION
   =================================== */
.services {
    background: var(--primary-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.service-card {
    background: rgba(30, 58, 138, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(124, 58, 237, 0.5);
    box-shadow: var(--shadow-glow);
    background: rgba(30, 58, 138, 0.3);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.service-card h3 {
    color: var(--text-white);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--text-gray);
    line-height: 1.8;
}

/* ===================================
   CONTACT SECTION
   =================================== */
.contact {
    background: linear-gradient(180deg, var(--primary-dark) 0%, #1a2642 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.founder-card {
    background: rgba(30, 58, 138, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-normal);
    opacity: 0;
    transform: scale(0.9);
}

.founder-card.visible {
    opacity: 1;
    transform: scale(1);
}

.founder-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-glow);
    border-color: rgba(124, 58, 237, 0.5);
}

.founder-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto var(--spacing-md);
    border: 4px solid transparent;
    background: var(--gradient-accent);
    padding: 4px;
}

.founder-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: var(--spacing-xs);
}

.founder-title {
    color: var(--accent-cyan);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.founder-email {
    color: var(--text-gray);
    text-decoration: none;
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(6, 182, 212, 0.1);
    border-radius: 8px;
    transition: var(--transition-fast);
}

.founder-email:hover {
    background: rgba(6, 182, 212, 0.2);
    color: var(--accent-cyan);
}

.location-card {
    grid-column: 1 / -1;
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: 20px;
    padding: var(--spacing-lg);
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
}

.location-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.location-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.location-card h3 {
    color: var(--text-white);
    margin-bottom: var(--spacing-sm);
}

.location-card p {
    font-size: var(--font-size-lg);
    color: var(--text-gray);
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--primary-dark);
    padding: var(--spacing-lg) var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer p {
    color: var(--text-gray);
    margin-bottom: var(--spacing-sm);
}

.footer-logo {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.footer-logo-img {
    height: 56px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    filter: drop-shadow(0 0 8px rgba(6, 182, 212, 0.4));
    opacity: 0.9;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 968px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background: rgba(10, 22, 40, 0.98);
        backdrop-filter: blur(10px);
        padding: var(--spacing-md);
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-toggle {
        display: block;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }

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

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

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.text-gradient {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glassmorphism {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}