/* =========== DESIGN TOKENS & VARIABLES =========== */
:root {
    /* Color Palette - Premium Dark Theme */
    --clr-bg-main: #0a0f1c;
    --clr-bg-surface: #131b2f;
    --clr-bg-card: rgba(19, 27, 47, 0.6);
    --clr-text-main: #f8fafc;
    --clr-text-muted: #94a3b8;

    /* Accents - Tech Blue to Warm Orange/Soft Red */
    --clr-accent-1: #38bdf8;
    /* Light Blue */
    --clr-accent-2: #818cf8;
    /* Indigo */
    --clr-accent-3: #f97316;
    /* Warm Orange/Soft Red */
    --clr-accent-4: #fb923c;
    /* Lighter Orange */

    /* Gradients */
    --grad-primary: linear-gradient(135deg, var(--clr-accent-2) 0%, var(--clr-accent-3) 100%);
    --grad-text: linear-gradient(to right, var(--clr-accent-1), var(--clr-accent-3));
    --grad-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Layout */
    --container-width: 1200px;
    --border-radius-lg: 24px;
    --border-radius-md: 16px;
    --border-radius-sm: 8px;

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

    /* Borders & Shadows */
    --border-glass: 1px solid rgba(255, 255, 255, 0.1);
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

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

body {
    background-color: var(--clr-bg-main);
    color: var(--clr-text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

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

.section-padding {
    padding: var(--spacing-xl) 0;
}

.accent-text {
    background: var(--grad-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* =========== HEADER NAVIGATION =========== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(10, 15, 28, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: var(--border-glass);
    padding: var(--spacing-md) 0;
    transition: padding 0.3s ease;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-links a {
    font-weight: 500;
    font-size: 1rem;
    color: var(--clr-text-muted);
    position: relative;
}

.nav-links a:hover {
    color: var(--clr-text-main);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--grad-primary);
    transition: width 0.3s ease;
}

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

/* =========== HERO SECTION =========== */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    /* Offset for fixed header */
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: -20%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--clr-accent-2) 0%, transparent 60%);
    opacity: 0.15;
    filter: blur(80px);
    z-index: -1;
    border-radius: 50%;
    animation: float 10s ease-in-out infinite alternate;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--clr-accent-1) 0%, transparent 60%);
    opacity: 0.15;
    filter: blur(80px);
    z-index: -1;
    border-radius: 50%;
    animation: float 12s ease-in-out infinite alternate-reverse;
}

@keyframes float {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(50px, 50px);
    }
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(to right, #ffffff, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--clr-text-muted);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
}

.btn-primary {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--grad-primary);
    color: #fff;
    font-weight: 600;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.4);
    transform: translateY(0);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(249, 115, 22, 0.6);
}

.btn-secondary {
    display: inline-block;
    padding: 1rem 2rem;
    background: transparent;
    color: var(--clr-text-main);
    border: 2px solid rgba(255, 255, 255, 0.2);
    font-weight: 600;
    border-radius: 50px;
    transform: translateY(0);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--clr-accent-1);
    transform: translateY(-3px);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* =========== SERVICES SECTION =========== */
.services-section {
    position: relative;
    z-index: 1;
}

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

.service-card {
    background: var(--grad-glass);
    border: var(--border-glass);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-glass);
    transition: transform 0.4s ease, border-color 0.4s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--clr-accent-1);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    background: var(--grad-glass);
    width: 70px;
    height: 70px;
    line-height: 70px;
    text-align: center;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-md);
    color: var(--clr-text-main);
}

.service-card p {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
}

/* =========== VALUE PROPOSITION =========== */
.value-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.value-list li {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.02);
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
}

.value-list li:hover {
    transform: translateX(10px);
    border-color: rgba(255, 255, 255, 0.1);
}

.value-icon {
    font-size: 2rem;
    min-width: 50px;
}

.value-list h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--clr-accent-3);
}

.glass-panel {
    background: var(--grad-glass);
    border: var(--border-glass);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-glass);
    position: relative;
    overflow: hidden;
}

.abstract-graphic {
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--clr-accent-3) 0%, transparent 70%);
    opacity: 0.2;
    border-radius: 50%;
}

.quote {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-style: italic;
    color: var(--clr-text-main);
    line-height: 1.4;
}

/* =========== TEAM SECTION =========== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.section-desc {
    color: var(--clr-text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

/* Profile Card - Glassmorphism */
.profile-card {
    background: var(--grad-glass);
    border: var(--border-glass);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-glass);
    transition: transform 0.4s ease, border-color 0.4s ease;
    display: flex;
    flex-direction: column;
}

.profile-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.2);
}

.profile-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.profile-image-placeholder {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-md);
    background: var(--clr-bg-surface);
    border: 2px solid var(--clr-accent-1);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.2);
}

.profile-name {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.profile-role {
    color: var(--clr-accent-1);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.profile-about {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.experience-list h4 {
    font-size: 0.9rem;
    color: var(--clr-text-main);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.experience-list ul li {
    font-size: 0.9rem;
    color: var(--clr-text-muted);
    margin-bottom: 0.5rem;
    padding-left: 1.25rem;
    position: relative;
}

.experience-list ul li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--clr-accent-1);
}

.linkedin-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: auto;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    color: #fff;
    font-weight: 500;
    transition: all 0.3s ease;
}

.linkedin-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--clr-accent-1);
}

/* =========== FOOTER =========== */
.footer {
    padding: var(--spacing-lg) 0;
    margin-top: 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
}

.tagline {
    font-size: 1.1rem;
    color: var(--clr-text-main) !important;
    margin: 0.5rem 0 1rem;
    font-weight: 500;
}

.academic-backing {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links a {
    display: block;
    color: var(--clr-text-muted);
    margin-top: 0.5rem;
}

.footer-links a:hover {
    color: var(--clr-accent-3);
}

.footer-bottom {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.85rem;
    color: var(--clr-text-muted);
    text-align: center;
}

/* =========== RESPONSIVE =========== */
@media (max-width: 900px) {
    .value-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {

    .nav-links,
    .hidden-mobile {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .footer-content {
        flex-direction: column;
        text-align: left;
    }
}