/* ============================================
   TECHIP — Professional Landing Page Styles
   DARK THEME
   Theme: Blue #2979FF · Cyan #00E5FF · Magenta #E040FB
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
    --blue: #2979FF;
    --cyan: #00E5FF;
    --magenta: #E040FB;
    --dark: #0B0E17;
    --dark-2: #101424;
    --dark-3: #161B2E;
    --dark-4: #1C2238;
    --white: #FFFFFF;
    --text-primary: #E8ECF4;
    --text-secondary: #9BA3B8;
    --text-muted: #6B7490;
    --border-color: rgba(255,255,255,.07);
    --border-light: rgba(255,255,255,.1);
    --gradient-primary: linear-gradient(135deg, var(--blue), var(--cyan));
    --gradient-accent: linear-gradient(135deg, var(--magenta), var(--blue));
    --gradient-full: linear-gradient(135deg, var(--magenta), var(--blue), var(--cyan));
    --shadow-sm: 0 2px 8px rgba(0,0,0,.3);
    --shadow-md: 0 8px 30px rgba(0,0,0,.35);
    --shadow-lg: 0 20px 60px rgba(0,0,0,.4);
    --shadow-glow-blue: 0 0 30px rgba(41,121,255,.3);
    --shadow-glow-magenta: 0 0 30px rgba(224,64,251,.3);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: .35s cubic-bezier(.4,0,.2,1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-primary);
    background: var(--dark);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Gradient Text ---------- */
.gradient-text {
    background: var(--gradient-full);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: .95rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(41,121,255,.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(41,121,255,.55);
}

.btn-outline {
    border: 2px solid var(--blue);
    color: var(--blue);
    background: transparent;
}

.btn-outline:hover {
    background: var(--blue);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ---------- Section Shared ---------- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    border-radius: 50px;
    background: rgba(41,121,255,.12);
    color: var(--cyan);
    font-weight: 600;
    font-size: .85rem;
    letter-spacing: .5px;
    margin-bottom: 16px;
    text-transform: uppercase;
    border: 1px solid rgba(41,121,255,.15);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--white);
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 560px;
    margin: 0 auto;
}

/* ============================================
   HEADER / NAVBAR
   ============================================ */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    background: rgba(11,14,23,.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
}

#header.scrolled {
    background: rgba(11,14,23,.92);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0,0,0,.4);
}

.navbar {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    font-size: .95rem;
    color: var(--text-secondary);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--cyan);
}

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

.btn-nav {
    padding: 10px 24px !important;
    border-radius: 50px !important;
    background: var(--gradient-primary) !important;
    color: var(--white) !important;
    font-weight: 600 !important;
    box-shadow: 0 4px 16px rgba(41,121,255,.3);
}

.btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(41,121,255,.5) !important;
}

.btn-nav::after {
    display: none !important;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    padding: 120px 48px 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(160deg, var(--dark) 0%, var(--dark-2) 40%, var(--dark-3) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(0,229,255,.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(224,64,251,.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

/* Particles */
.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    border-radius: 50%;
    opacity: .5;
    animation: floatParticle linear infinite;
}

@keyframes floatParticle {
    0% { transform: translateY(0) scale(1); opacity: 0; }
    10% { opacity: .5; }
    90% { opacity: .5; }
    100% { transform: translateY(-100vh) scale(.5); opacity: 0; }
}

/* Hero Content */
.hero-content {
    flex: 1;
    max-width: 580px;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 50px;
    background: rgba(41,121,255,.1);
    color: var(--cyan);
    font-weight: 600;
    font-size: .85rem;
    margin-bottom: 20px;
    letter-spacing: .5px;
    border: 1px solid rgba(41,121,255,.15);
}

.hero-content h1 {
    font-size: 3.4rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    color: var(--white);
}

.cursor-blink {
    animation: blink .7s step-end infinite;
    color: var(--cyan);
    font-weight: 300;
}

@keyframes blink {
    50% { opacity: 0; }
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

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

/* Hero Visual */
.hero-visual {
    flex: 1;
    max-width: 480px;
    position: relative;
    z-index: 1;
    min-height: 400px;
}

/* Hex Grid */
.hex-grid {
    position: relative;
    width: 100%;
    height: 400px;
}

.hex {
    position: absolute;
    width: 160px;
    height: 160px;
    border-radius: var(--radius-lg);
    transform: rotate(45deg);
}

.hex-1 {
    background: var(--gradient-primary);
    opacity: .2;
    top: 20%;
    left: 30%;
    animation: hexFloat 6s ease-in-out infinite;
}

.hex-2 {
    background: var(--gradient-accent);
    opacity: .15;
    top: 45%;
    left: 55%;
    width: 120px;
    height: 120px;
    animation: hexFloat 8s ease-in-out infinite reverse;
}

.hex-3 {
    background: linear-gradient(135deg, var(--cyan), var(--blue));
    opacity: .12;
    top: 10%;
    left: 60%;
    width: 80px;
    height: 80px;
    animation: hexFloat 5s ease-in-out infinite;
}

@keyframes hexFloat {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(-20px); }
}

/* Floating Cards */
.floating-card {
    position: absolute;
    background: var(--dark-3);
    border-radius: var(--radius);
    padding: 16px 22px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    z-index: 2;
    font-weight: 600;
    font-size: .9rem;
    color: var(--text-primary);
    animation: cardFloat 5s ease-in-out infinite;
    border: 1px solid var(--border-color);
}

.floating-card i {
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
}

.card-1 {
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}
.card-1 i { background: rgba(41,121,255,.15); color: var(--blue); }

.card-2 {
    top: 50%;
    right: 0;
    animation-delay: 1s;
}
.card-2 i { background: rgba(224,64,251,.15); color: var(--magenta); }

.card-3 {
    bottom: 10%;
    left: 15%;
    animation-delay: 2s;
}
.card-3 i { background: rgba(0,229,255,.15); color: var(--cyan); }

@keyframes cardFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ============================================
   ABOUT
   ============================================ */
.about {
    padding: 100px 0;
    background: var(--dark-2);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 1.02rem;
}

.about-text strong {
    color: var(--cyan);
}

.stats-row {
    display: flex;
    gap: 40px;
    margin-top: 32px;
}

.stat h3 {
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat span {
    font-size: .85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.about-visual {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-card {
    background: var(--dark-3);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.about-card:hover {
    background: var(--dark-4);
    border-color: var(--border-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.about-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.about-icon i {
    font-size: 1.4rem;
    color: var(--white);
}

.about-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--white);
}

.about-card p {
    color: var(--text-secondary);
    font-size: .95rem;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    padding: 100px 0;
    background: var(--dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--dark-3);
    border-radius: var(--radius-lg);
    padding: 36px 30px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-full);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(0,0,0,.5);
    border-color: var(--border-light);
    background: var(--dark-4);
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
    font-size: 1.4rem;
    transition: var(--transition);
}

.service-card:nth-child(1) .service-icon { background: rgba(41,121,255,.15); color: var(--blue); }
.service-card:nth-child(2) .service-icon { background: rgba(0,229,255,.15); color: var(--cyan); }
.service-card:nth-child(3) .service-icon { background: rgba(224,64,251,.15); color: var(--magenta); }
.service-card:nth-child(4) .service-icon { background: rgba(41,121,255,.15); color: var(--blue); }
.service-card:nth-child(5) .service-icon { background: rgba(224,64,251,.15); color: var(--magenta); }
.service-card:nth-child(6) .service-icon { background: rgba(0,229,255,.15); color: var(--cyan); }

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--white);
}

.service-card p {
    color: var(--text-secondary);
    font-size: .93rem;
    margin-bottom: 18px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--cyan);
    font-weight: 600;
    font-size: .9rem;
}

.service-link:hover {
    gap: 12px;
    color: var(--blue);
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    padding: 100px 0;
    background: var(--dark);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 18px;
}

.contact-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.2rem;
    color: var(--white);
}

.contact-item h4 {
    font-weight: 700;
    font-size: .95rem;
    margin-bottom: 2px;
    color: var(--white);
}

.contact-item a,
.contact-item p {
    color: var(--text-secondary);
    font-size: .93rem;
}

.contact-item a:hover {
    color: var(--cyan);
}

.social-links {
    display: flex;
    gap: 14px;
    margin-top: 12px;
}

.social-links a {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--dark-3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--gradient-primary);
    color: var(--white);
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-blue);
}

/* Contact Form */
.contact-form {
    background: var(--dark-3);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.form-group {
    position: relative;
    margin-bottom: 22px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 18px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: .95rem;
    color: var(--text-primary);
    transition: var(--transition);
    background: var(--dark-2);
    resize: vertical;
}

.form-group label {
    position: absolute;
    top: 50%;
    left: 18px;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: .9rem;
    pointer-events: none;
    transition: var(--transition);
    opacity: 0;
}

.form-group textarea + label {
    top: 18px;
    transform: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--blue);
    background: var(--dark-4);
    outline: none;
    box-shadow: 0 0 0 4px rgba(41,121,255,.15);
}

.form-group input:focus + label,
.form-group textarea:focus + label {
    top: -10px;
    left: 14px;
    font-size: .75rem;
    color: var(--cyan);
    background: var(--dark-3);
    padding: 0 6px;
    opacity: 1;
}

.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 14px;
    font-size: .75rem;
    background: var(--dark-3);
    padding: 0 6px;
    opacity: 1;
    color: var(--text-secondary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark-2);
    color: var(--text-secondary);
    padding: 60px 0 0;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.footer-logo {
    height: 46px;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: .93rem;
    line-height: 1.7;
    max-width: 300px;
    color: var(--text-secondary);
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-weight: 700;
    margin-bottom: 18px;
    font-size: 1rem;
}

.footer-links a {
    display: block;
    margin-bottom: 10px;
    font-size: .9rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--cyan);
    padding-left: 6px;
}

.footer-contact p {
    font-size: .9rem;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.footer-contact i {
    margin-right: 8px;
    color: var(--cyan);
}

.footer-bottom {
    text-align: center;
    padding: 24px 0;
    font-size: .85rem;
    color: var(--text-muted);
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: var(--gradient-primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: var(--shadow-glow-blue);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
}

/* ============================================
   SCROLL REVEAL ANIMATION
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity .8s cubic-bezier(.4,0,.2,1), transform .8s cubic-bezier(.4,0,.2,1);
}

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

/* ============================================
   TOAST NOTIFICATION
   ============================================ */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: var(--dark-3);
    color: var(--text-primary);
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: .95rem;
    box-shadow: 0 8px 40px rgba(0,0,0,.5);
    border: 1px solid var(--border-light);
    z-index: 9999;
    opacity: 0;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast i {
    color: var(--cyan);
    font-size: 1.2rem;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero { flex-direction: column; text-align: center; padding: 120px 24px 60px; }
    .hero-content { max-width: 600px; }
    .hero-buttons { justify-content: center; }
    .hero-visual { display: none; }
    .about-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .stats-row { justify-content: center; }
}

@media (max-width: 768px) {
    .hamburger { display: flex; }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--dark-2);
        flex-direction: column;
        padding: 100px 32px 32px;
        gap: 20px;
        box-shadow: -4px 0 30px rgba(0,0,0,.5);
        transition: var(--transition);
        z-index: 1000;
        border-left: 1px solid var(--border-color);
    }

    .nav-links.active {
        right: 0;
    }

    .hero-content h1 { font-size: 2.4rem; }
    .section-header h2 { font-size: 2rem; }
    .services-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .stats-row { flex-direction: column; align-items: center; gap: 24px; }
}

@media (max-width: 480px) {
    .hero-content h1 { font-size: 2rem; }
    .hero-content p { font-size: 1rem; }
    .btn { padding: 12px 24px; font-size: .9rem; }
    .contact-form { padding: 28px 20px; }
}