/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #0d0d14;
    --bg-card: #12121a;
    --bg-input: #16161f;
    --bg-navbar: rgba(10, 10, 15, 0.85);
    
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --accent-blue: #00d4ff;
    --accent-blue-dim: rgba(0, 212, 255, 0.15);
    --accent-glow: rgba(0, 212, 255, 0.4);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-input: rgba(255, 255, 255, 0.12);
    
    /* Typography */
    --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --section-padding: clamp(4rem, 10vw, 8rem);
    --container-max: 1200px;
    --nav-height: 72px;
    
    /* Effects */
    --transition-fast: 150ms ease;
    --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --blur-glass: blur(20px);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 60px var(--accent-glow);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

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

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea {
    font-family: inherit;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-navbar);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    border-bottom: 1px solid var(--border-color);
    height: var(--nav-height);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo-icon {
    font-size: 1.25rem;
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

.brand-logo {
    height: 26px;
    width: auto;
    object-fit: contain;
    margin-right: 8px;
    vertical-align: middle;
    filter: drop-shadow(0 0 6px rgba(0, 200, 255, 0.35));
}

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

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: var(--transition-smooth);
}

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

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

.nav-cta {
    background: var(--accent-blue);
    color: var(--bg-primary);
    padding: 0.7rem 1.4rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-smooth);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-smooth);
    transform-origin: center;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-smooth);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        font-size: 1.1rem;
    }
    
    .nav-cta {
        width: 100%;
        text-align: center;
        padding: 1rem;
    }
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: calc(var(--nav-height) + 2rem) 1.5rem 4rem;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 212, 255, 0.12), transparent),
        linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-gradient-orb {
    position: absolute;
    bottom: -200px;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 850px;
    position: relative;
    z-index: 1;
}

.hero-headline {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.highlight {
    background: linear-gradient(135deg, var(--accent-blue), #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subheading {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

/* ===== Core Solutions Section ===== */
.solutions {
    padding: clamp(5rem, 10vw, 6.25rem) 1.5rem;
    background: var(--bg-secondary);
    position: relative;
}

.solutions::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.solutions-container {
    max-width: var(--container-max);
    margin: 0 auto;
}

.solutions-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 3.5rem;
}

.solutions-heading {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.solutions-subheading {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Solutions Grid */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}

@media (max-width: 900px) {
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .solutions-grid {
        grid-template-columns: 1fr;
    }
}

/* Solution Card */
.solution-card {
    background: #111418;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.solution-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent 50%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.4),
        0 0 60px rgba(0, 212, 255, 0.08);
}

/* Solution Icon with Gradient Backgrounds */
.solution-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 14px;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.solution-icon span {
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

/* Icon Gradient Variants */
.solution-icon--cyan {
    background: linear-gradient(135deg, #26C6DA, #00ACC1);
    box-shadow: 0 4px 24px rgba(38, 198, 218, 0.35);
}

.solution-card:hover .solution-icon--cyan {
    box-shadow: 0 4px 32px rgba(38, 198, 218, 0.5);
}

.solution-icon--teal {
    background: linear-gradient(135deg, #00E5FF, #00B8D4);
    box-shadow: 0 4px 24px rgba(0, 229, 255, 0.35);
}

.solution-card:hover .solution-icon--teal {
    box-shadow: 0 4px 32px rgba(0, 229, 255, 0.5);
}

.solution-icon--green {
    background: linear-gradient(135deg, #00E676, #00C853);
    box-shadow: 0 4px 24px rgba(0, 230, 118, 0.35);
}

.solution-card:hover .solution-icon--green {
    box-shadow: 0 4px 32px rgba(0, 230, 118, 0.5);
}

.solution-icon--purple {
    background: linear-gradient(135deg, #7C4DFF, #651FFF);
    box-shadow: 0 4px 24px rgba(124, 77, 255, 0.35);
}

.solution-card:hover .solution-icon--purple {
    box-shadow: 0 4px 32px rgba(124, 77, 255, 0.5);
}

.solution-icon--magenta {
    background: linear-gradient(135deg, #D500F9, #AA00FF);
    box-shadow: 0 4px 24px rgba(213, 0, 249, 0.35);
}

.solution-card:hover .solution-icon--magenta {
    box-shadow: 0 4px 32px rgba(213, 0, 249, 0.5);
}

.solution-icon--red {
    background: linear-gradient(135deg, #FF1744, #D50000);
    box-shadow: 0 4px 24px rgba(255, 23, 68, 0.35);
}

.solution-card:hover .solution-icon--red {
    box-shadow: 0 4px 32px rgba(255, 23, 68, 0.5);
}

.solution-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.65rem;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.solution-text {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.925rem;
    line-height: 1.65;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 1rem 1.8rem;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-blue);
    color: var(--bg-primary);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-input);
    border-color: var(--accent-blue);
    transform: translateY(-3px);
}

.btn-secondary svg {
    color: #25D366;
}

/* ===== About Section ===== */
.about {
    padding: var(--section-padding) 1.5rem;
    background: var(--bg-secondary);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.about-container {
    max-width: var(--container-max);
    margin: 0 auto;
}

.about-header {
    text-align: center;
    max-width: 750px;
    margin: 0 auto 4rem;
}

.about-heading {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.about-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Feature Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 212, 255, 0.1);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--accent-blue-dim);
    border-radius: 12px;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.feature-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ===== Industries Section ===== */
.industries {
    padding: clamp(4rem, 10vw, 5.5rem) 1.5rem;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
}

.industries::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.industries-container {
    max-width: var(--container-max);
    margin: 0 auto;
}

.industries-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 3.5rem;
}

.industries-heading {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.industries-subheading {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Industry Cards Grid */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 900px) {
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .industries-grid {
        grid-template-columns: 1fr;
    }
}

.industry-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.75rem;
    transition: var(--transition-smooth);
}

.industry-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25), 0 0 30px rgba(0, 212, 255, 0.08);
}

.industry-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: var(--accent-blue-dim);
    border-radius: 12px;
    margin-bottom: 1.25rem;
    color: var(--accent-blue);
}

.industry-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    letter-spacing: -0.01em;
}

.industry-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.65;
}

/* ===== Contact Section ===== */
.contact {
    padding: var(--section-padding) 1.5rem;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.contact-glow {
    position: absolute;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(0, 212, 255, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.contact-container {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.contact-header {
    text-align: center;
    margin-bottom: 3rem;
}

.contact-heading {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.contact-subheading {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Form Styles */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border-input);
    border-radius: 10px;
    padding: 0.9rem 1rem;
    font-size: 1rem;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 500px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.btn-submit {
    width: 100%;
    background: var(--accent-blue);
    color: var(--bg-primary);
    padding: 1rem 1.5rem;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    transition: var(--transition-smooth);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.25);
    margin-top: 0.5rem;
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(0, 212, 255, 0.4);
}

/* ===== Thank You Section ===== */
.thank-you-section {
    min-height: calc(100vh - var(--nav-height));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--nav-height) + 4rem) 1.5rem 4rem;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 212, 255, 0.08), transparent),
        linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
}

.thank-you-container {
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

.thank-you-content {
    text-align: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem 2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.thank-you-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--accent-blue-dim);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50%;
    margin-bottom: 2rem;
    color: var(--accent-blue);
    box-shadow: 0 0 40px rgba(0, 212, 255, 0.3);
}

.thank-you-icon svg {
    width: 40px;
    height: 40px;
}

.thank-you-heading {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.2;
}

.thank-you-subheading {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.thank-you-content .btn {
    margin-top: 1rem;
}

/* ===== Footer ===== */
.footer {
    padding: 2.5rem 1.5rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.2rem;
    font-weight: 700;
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== Utility & Animations ===== */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* Selection */
::selection {
    background: rgba(0, 212, 255, 0.3);
    color: var(--text-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-card);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}