/* style.css - Modernized Design System */

:root {
    /* Color Palette - Vibrant Water/Tech Theme */
    --color-primary: #0070f3;
    --color-primary-light: #3291ff;
    --color-primary-dark: #0051a8;
    --color-secondary: #00d2ff;
    --color-accent: #3aedb8;
    
    /* Backgrounds */
    --bg-base: #0a0f18;
    --bg-surface: #111827;
    --bg-surface-glass: rgba(17, 24, 39, 0.75);
    
    /* Typography */
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-inverse: #ffffff;
    
    /* Fonts */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Poppins', var(--font-sans);
    
    /* Shadows & Transitions */
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(0, 112, 243, 0.3);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    
    /* Spacing & Structure */
    --border-radius: 16px;
    --container-width: 1200px;
}

/* Reset & Base Setup */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

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

/* Background Effects */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    filter: blur(120px);
    opacity: 0.5;
    z-index: -1;
    border-radius: 50%;
    animation: float 20s ease-in-out infinite alternate;
}

.blob-1 {
    top: -10%;
    right: -5%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-primary-dark) 0%, transparent 70%);
}

.blob-2 {
    bottom: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 210, 255, 0.15) 0%, transparent 70%);
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-30px, 50px) scale(1.1); }
}

/* Typography Tools */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: 1.2;
    color: var(--text-inverse);
    margin-bottom: 1rem;
}

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

.text-gradient {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.text-highlight {
    color: var(--color-secondary);
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.text-center { text-align: center; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--text-inverse);
    box-shadow: 0 4px 15px rgba(0, 112, 243, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 112, 243, 0.5);
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-primary-sm {
    background: var(--color-primary);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.9rem;
}

.btn-primary-sm:hover {
    background: var(--color-primary-light);
    box-shadow: var(--shadow-glow);
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(10, 15, 24, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1rem 0;
    transition: var(--transition);
}

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

.brand-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-logo {
    height: 40px;
    width: auto;
}

.brand-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    background: linear-gradient(to right, #ffffff, #a5b4fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-link:hover {
    color: var(--text-inverse);
}

.navbar-highlight {
    color: var(--color-secondary) !important;
    font-weight: 600 !important;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    padding-bottom: 4rem;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: rgba(0, 112, 243, 0.1);
    color: var(--color-secondary);
    border: 1px solid rgba(0, 112, 243, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.floating-img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.4));
    animation: float-hero 6s ease-in-out infinite;
}

@keyframes float-hero {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(2deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

/* Glass Section styles (About) */
.glass-section {
    padding: 6rem 0;
    position: relative;
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    background: var(--bg-surface-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 24px;
    padding: 4rem;
    box-shadow: var(--shadow-md);
}

.about-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-wrapper {
    position: relative;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
}

.glow {
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--color-primary);
    filter: blur(60px);
    border-radius: 50%;
    opacity: 0.3;
    z-index: -1;
}

.about-img {
    max-width: 60%;
    height: auto;
    filter: drop-shadow(0 10px 15px rgba(0,0,0,0.5));
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.lead {
    font-size: 1.25rem;
    color: var(--text-inverse);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.about-content p:not(.lead) {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* Applications Section */
.applications-section {
    padding: 8rem 0;
}

.section-header {
    margin-bottom: 4rem;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.15rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.app-card {
    background: var(--bg-surface);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.05);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.app-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255,255,255,0.15);
    box-shadow: var(--shadow-glow);
}

.card-img-wrapper {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: rgba(0,0,0,0.3);
}

.card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.5s ease;
}

.app-card:hover .card-img {
    transform: scale(1.05);
}

.card-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to top, var(--bg-surface) 0%, transparent 100%);
}

.card-body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.card-text {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-secondary);
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: auto;
}

.card-link:hover {
    color: var(--color-primary-light);
}

.card-link svg {
    transition: transform 0.3s ease;
}

.card-link:hover svg {
    transform: translateX(5px);
}

/* Footer */
.footer {
    background: #05080f;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-logo-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-logo {
    height: 48px;
    width: auto;
}

.footer-brand-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.footer-desc {
    color: var(--text-muted);
    max-width: 300px;
}

.footer-heading {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.footer-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-list a {
    color: var(--text-muted);
}

.footer-list a:hover {
    color: var(--color-secondary);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-margin {
    margin-bottom: 2rem;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
    color: var(--text-main);
    transition: var(--transition);
}

.social-icon:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-3px);
}

.footer-social-links {
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}
.footer-social-links a {
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}
.footer-social-links a:hover {
    color: var(--color-secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-title { font-size: 3rem; }
    .hero-container, .about-container { grid-template-columns: 1fr; text-align: center; }
    .hero-cta { justify-content: center; }
    .hero-visual { display: none; }
    .about-visual { margin-bottom: 2rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .main-nav { display: none; }
    .hero-title { font-size: 2.5rem; }
    .hero-cta { flex-direction: column; width: 100%; }
    .hero-cta .btn { width: 100%; }
    .about-container { padding: 2rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .cards-grid { grid-template-columns: 1fr; }
}