/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    touch-action: manipulation;
}

:root {
    --bg-primary: #0b0a0f;
    --bg-secondary: #11101a;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --border-card: rgba(255, 255, 255, 0.06);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.45);
    --accent-1: #00d4ff;
    --accent-2: #0099cc;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;
    --radius: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 212, 255, 0.5) rgba(255, 255, 255, 0.04);
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
    -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.03);
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--accent-1), var(--accent-2));
    border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #33ddff, var(--accent-1));
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
    z-index: 200;
    box-shadow: 0 0 8px rgba(0, 212, 255, 0.6);
    pointer-events: none;
}

a {
    text-decoration: none;
    color: inherit;
}

::selection {
    background: var(--accent-1);
    color: #000;
}

/* ===== BACKGROUND EFFECTS ===== */
.bg-grid {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}
.bg-grid::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 212, 255, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(0, 212, 255, 0.04) 0%, transparent 50%);
    background-attachment: fixed;
}
.bg-grid::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 70%);
}

.glow-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
    animation: orbFloat 12s ease-in-out infinite alternate;
    will-change: transform, opacity;
}
.glow-orb--1 {
    width: 500px;
    height: 500px;
    background: var(--accent-1);
    top: -10%;
    left: -10%;
    opacity: 0.12;
    animation-delay: 0s;
}
.glow-orb--2 {
    width: 400px;
    height: 400px;
    background: var(--accent-2);
    bottom: -10%;
    right: -10%;
    opacity: 0.08;
    animation-delay: -4s;
}
.glow-orb--3 {
    width: 300px;
    height: 300px;
    background: #00b8d4;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.06;
    animation-delay: -8s;
}

@keyframes orbFloat {
    0%   { transform: translate(0, 0) scale(1); }
    33%  { transform: translate(30px, -40px) scale(1.1); }
    66%  { transform: translate(-20px, 30px) scale(0.9); }
    100% { transform: translate(10px, -20px) scale(1.05); }
}

/* ===== HEADER ===== */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 10, 15, 0.72);
    backdrop-filter: blur(18px) saturate(1.4);
    -webkit-backdrop-filter: blur(18px) saturate(1.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    will-change: transform, backdrop-filter;
}
header.scrolled {
    background: rgba(11, 10, 15, 0.88);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

nav {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.6rem;
    letter-spacing: 3px;
    background: linear-gradient(270deg, #ffffff, #a0e9ff, #00d4ff, #a0e9ff, #ffffff);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 6s ease-in-out infinite;
    text-shadow: 0 0 40px rgba(0, 212, 255, 0.15);
    will-change: background-position;
}
@keyframes gradientFlow {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}
.nav-links a {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
    letter-spacing: 0.2px;
}
.nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 2px;
    background: var(--accent-1);
    transition: var(--transition);
    border-radius: 4px;
}
.nav-links a:hover {
    color: #fff;
}
.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    color: #000 !important;
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.8rem;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.25);
}
.nav-cta::after {
    display: none !important;
}
.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 212, 255, 0.35);
    color: #000 !important;
}

.mobile-menu {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.6rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 8px;
    transition: var(--transition);
}
.mobile-menu:hover {
    background: rgba(255, 255, 255, 0.06);
}

.hero {
    position: relative;
    z-index: 1;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 32px 80px;
}

.hero-content {
    max-width: 900px;
    text-align: center;
    animation: heroFade 1s ease-out forwards;
}
@keyframes heroFade {
    0%   { opacity: 0; transform: translateY(30px); }
    100% { opacity: 1; transform: translateY(0); }
}

.hero-badge {
    display: inline-block;
    background: rgba(0, 212, 255, 0.12);
    border: 1px solid rgba(0, 212, 255, 0.2);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--accent-1);
    margin-bottom: 24px;
    font-family: var(--font-body);
    animation: flicker 2.5s ease-in-out infinite alternate;
}
.hero-badge::before {
    content: '●  ';
    color: var(--accent-1);
}
@keyframes flicker {
    0%   { opacity: 0.5; }
    100% { opacity: 1; }
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #ffffff 40%, rgba(255, 255, 255, 0.6));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero h1 .highlight {
    background: linear-gradient(135deg, var(--accent-1), #66e5ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .tagline {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.2rem;
    color: #b8f2ff;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.15);
}

.hero-desc {
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 36px;
    line-height: 1.7;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    color: #000;
    box-shadow: 0 4px 28px rgba(0, 212, 255, 0.3);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 212, 255, 0.4);
}
.btn .arrow {
    transition: var(--transition);
    display: inline-block;
}
.btn:hover .arrow {
    transform: translateX(4px);
}

.section {
    position: relative;
    z-index: 1;
    padding: 80px 32px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-1);
    font-weight: 600;
    margin-bottom: 8px;
    font-family: var(--font-body);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
    line-height: 1.2;
}
.section-title .highlight {
    background: linear-gradient(135deg, var(--accent-1), #66e5ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-sub {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 640px;
    line-height: 1.7;
    font-family: var(--font-body);
}

.mission-box {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius);
    padding: 40px 44px;
    backdrop-filter: blur(4px);
    transition: var(--transition);
    margin-top: 20px;
}
.mission-box:hover {
    background: var(--bg-card-hover);
    border-color: rgba(0, 212, 255, 0.15);
}
.mission-box p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-family: var(--font-body);
}
.mission-box p:not(:last-child) {
    margin-bottom: 16px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius);
    padding: 28px 30px;
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(0, 212, 255, 0.06) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition);
}
.service-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(0, 212, 255, 0.2);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}
.service-card:hover::before {
    opacity: 1;
}

.service-card .card-accent {
    width: 32px;
    height: 3px;
    background: var(--accent-1);
    border-radius: 2px;
    margin-bottom: 16px;
    transition: var(--transition);
}
.service-card:hover .card-accent {
    width: 48px;
    background: #66e5ff;
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    flex: 1;
    font-family: var(--font-body);
}

.service-card .read-more {
    margin-top: 16px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-1);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
    font-family: var(--font-body);
}
.service-card:hover .read-more {
    gap: 12px;
    color: #66e5ff;
}

.contact-section {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 80px 32px 100px;
    max-width: 800px;
    margin: 0 auto;
}
.contact-section h2 {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 700;
    margin-bottom: 12px;
}
.contact-section .contact-info {
    color: var(--text-secondary);
    font-size: 1.05rem;
    font-family: var(--font-body);
}
.contact-section .contact-info a {
    color: var(--accent-1);
    font-weight: 500;
    transition: var(--transition);
}
.contact-section .contact-info a:hover {
    color: #66e5ff;
}
.contact-section .btn {
    margin-top: 24px;
}

footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 32px 32px 28px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: var(--font-body);
}
footer a {
    color: var(--text-secondary);
    transition: var(--transition);
}
footer a:hover {
    color: #fff;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (max-width: 820px) {
    /* PERFORMANCE: simplify background on mobile */
    .bg-grid::before {
        background-image: radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.04) 0%, transparent 60%),
                          radial-gradient(circle at 80% 20%, rgba(0, 212, 255, 0.03) 0%, transparent 50%);
        background-attachment: scroll;
    }
    .bg-grid::after {
        display: none;
    }

    .glow-orb--1,
    .glow-orb--2,
    .glow-orb--3 {
        width: 200px;
        height: 200px;
        opacity: 0.06;
        filter: blur(40px);
    }
    .glow-orb--1 { opacity: 0.08; }
    .glow-orb--2 { opacity: 0.06; }
    .glow-orb--3 { opacity: 0.04; }

    header {
        backdrop-filter: blur(6px);
        -webkit-backdrop-filter: blur(6px);
    }

    /* === FIXED MOBILE NAV: SHOW ALL LINKS === */
    .mobile-menu {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100vh;
        background: rgba(11, 10, 15, 0.97);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 28px;
        padding: 40px 20px;
        z-index: 102;
        box-sizing: border-box;
        overflow-y: auto;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        display: flex !important;       /* ensure flex layout */
        pointer-events: none;           /* hidden by default */
    }
    .nav-links.open {
        transform: translateX(0);
        pointer-events: auto;
    }

    /* Make sure every list item is visible and centered */
    .nav-links li {
        list-style: none;
        margin: 0;
        padding: 0;
        width: 100%;
        max-width: 280px;
        text-align: center;
    }

    .nav-links a {
        font-size: 1.3rem;
        font-weight: 500;
        color: var(--text-secondary);
        display: block;
        padding: 10px 0;
        transition: var(--transition);
        letter-spacing: 0.5px;
    }
    .nav-links a::after {
        display: none; /* remove underline on mobile */
    }
    .nav-links a:hover,
    .nav-links a:focus {
        color: #fff;
        transform: scale(1.04);
    }

    /* CTA button inside overlay */
    .nav-links .nav-cta {
        background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
        color: #000 !important;
        padding: 12px 32px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 1rem;
        display: inline-block;
        width: auto;
        min-width: 160px;
        margin: 4px auto 0;
        box-shadow: 0 4px 28px rgba(0, 212, 255, 0.3);
    }
    .nav-links .nav-cta:hover {
        transform: translateY(-3px) scale(1.02);
        box-shadow: 0 8px 40px rgba(0, 212, 255, 0.45);
        color: #000 !important;
    }

    /* Close button (optional, if you use JS) */
    .mobile-close {
        display: none;
        position: fixed;
        top: 20px;
        right: 24px;
        z-index: 104;
        background: none;
        border: none;
        color: #fff;
        font-size: 2rem;
        cursor: pointer;
        padding: 4px 8px;
        border-radius: 8px;
        transition: var(--transition);
    }
    .mobile-close:hover {
        background: rgba(255, 255, 255, 0.06);
    }
    .mobile-close.show {
        display: block;
    }

    .hero {
        min-height: 80vh;
        padding: 40px 20px 60px;
    }
    .hero h1 {
        font-size: clamp(2.4rem, 10vw, 3.6rem);
    }
    .section {
        padding: 50px 20px;
    }
    .mission-box {
        padding: 28px 24px;
    }
    .services-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .service-card {
        padding: 24px 24px;
    }
    .contact-section {
        padding: 50px 20px 70px;
    }
}

@media (max-width: 480px) {
    nav {
        padding: 0 16px;
        height: 64px;
    }
    .logo-text {
        font-size: 1.2rem;
        letter-spacing: 2px;
        animation-duration: 8s;
    }
    .hero .tagline {
        font-size: 1rem;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    .btn {
        width: 100%;
        justify-content: center;
        padding: 14px 24px;
    }
    .nav-links {
        padding: 30px 16px;
        gap: 24px;
    }
    .nav-links a {
        font-size: 1.1rem;
        padding: 8px 0;
    }
    .nav-links .nav-cta {
        font-size: 0.95rem;
        padding: 10px 28px;
        min-width: 140px;
    }

    .glow-orb--1,
    .glow-orb--2,
    .glow-orb--3 {
        display: none;
    }

    .mobile-close {
        top: 16px;
        right: 16px;
        font-size: 1.6rem;
    }
}

/* ===== FADE-UP ANIMATION ===== */
.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}