/* -------- CSS RESET & THEME VARIABLES -------- */
:root {
    --clr-primary: #3B82F6;
    --clr-primary-dark: #2563EB;
    --clr-secondary: #8B5CF6;
    --clr-accent: #6366F1;
    --clr-primary-glow: rgba(59, 130, 246, 0.35);
    --clr-secondary-glow: rgba(139, 92, 246, 0.25);

    --font-heading: 'Outfit', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
}

[data-theme="dark"] {
    --clr-bg: #0B0F1A;
    --clr-bg-surface: #111827;
    --clr-bg-elevated: #1A2235;
    --clr-text-main: #F1F5F9;
    --clr-text-muted: #94A3B8;
    --clr-border: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(17, 24, 39, 0.75);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --navbar-bg: rgba(11, 15, 26, 0.85);
    --hero-overlay: rgba(11, 15, 26, 0.6);
    --input-bg: rgba(0, 0, 0, 0.25);
    --footer-bg: #060912;
    --grid-color: rgba(99, 102, 241, 0.06);
    --badge-bg: rgba(59, 130, 246, 0.12);
    --icon-bg: rgba(59, 130, 246, 0.12);
    --section-title-gradient: linear-gradient(90deg, #fff, var(--clr-text-muted));
    --hero-title-color: #fff;
    --hero-subtitle-color: rgba(255, 255, 255, 0.78);
}

[data-theme="light"] {
    --clr-bg: #F8FAFC;
    --clr-bg-surface: #FFFFFF;
    --clr-bg-elevated: #F1F5F9;
    --clr-text-main: #0F172A;
    --clr-text-muted: #64748B;
    --clr-border: rgba(15, 23, 42, 0.08);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(15, 23, 42, 0.08);
    --glass-shadow: 0 8px 32px rgba(15, 23, 42, 0.08);
    --navbar-bg: rgba(248, 250, 252, 0.9);
    --hero-overlay: rgba(248, 250, 252, 0.5);
    --input-bg: rgba(241, 245, 249, 0.8);
    --footer-bg: #0F172A;
    --grid-color: rgba(99, 102, 241, 0.08);
    --badge-bg: rgba(59, 130, 246, 0.1);
    --icon-bg: rgba(59, 130, 246, 0.1);
    --section-title-gradient: linear-gradient(90deg, var(--clr-text-main), var(--clr-text-muted));
    --hero-title-color: var(--clr-text-main);
    --hero-subtitle-color: var(--clr-text-muted);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--clr-bg);
    color: var(--clr-text-main);
    line-height: 1.65;
    overflow-x: hidden;
    transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

/* -------- TYPOGRAPHY -------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--clr-text-main);
}

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

ul { list-style: none; }

p { color: var(--clr-text-muted); }

/* -------- UTILITIES -------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--clr-primary);
    margin-bottom: 0.75rem;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.section-title h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    background: var(--section-title-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-title p {
    font-size: 1.05rem;
    margin-top: 0.75rem;
}

/* -------- BUTTONS -------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    text-align: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    color: #fff;
    box-shadow: 0 4px 20px var(--clr-primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px var(--clr-primary-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--clr-text-main);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: var(--icon-bg);
    border-color: var(--clr-primary);
    transform: translateY(-2px);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-primary-sm {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    color: #fff !important;
    padding: 0.55rem 1.25rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9rem;
}

.btn-primary-sm:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px var(--clr-primary-glow);
}

/* -------- GLASS CARD -------- */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--glass-shadow);
    transition: var(--transition-smooth);
}

.glass-card:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.25);
    box-shadow: 0 16px 48px rgba(59, 130, 246, 0.12);
}

/* -------- REVEAL ANIMATIONS -------- */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* -------- NAVIGATION -------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
    padding: 1rem 0;
}

.navbar.scrolled {
    background: var(--navbar-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0.75rem 0;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

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

.logo img {
    height: 44px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.navbar.scrolled .logo img {
    height: 38px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--clr-text-main);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    transition: var(--transition-smooth);
}

.theme-toggle:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary);
    transform: rotate(15deg);
}

[data-theme="dark"] .theme-icon-light { display: block; }
[data-theme="dark"] .theme-icon-dark { display: none; }
[data-theme="light"] .theme-icon-light { display: none; }
[data-theme="light"] .theme-icon-dark { display: block; }

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

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    color: var(--clr-text-main);
}

.nav-menu a:not(.btn-primary-sm):hover,
.nav-link.active {
    color: var(--clr-primary);
}

.nav-menu a:not(.btn-primary-sm)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--clr-primary), var(--clr-secondary));
    transition: var(--transition-smooth);
    border-radius: 2px;
}

.nav-menu a:not(.btn-primary-sm):hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--clr-text-main);
    align-items: center;
    justify-content: center;
}

/* -------- HERO -------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 20%, transparent 70%);
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 8s ease-in-out infinite;
}

.hero-glow-1 {
    width: 500px;
    height: 500px;
    background: var(--clr-primary);
    top: -10%;
    right: -5%;
    opacity: 0.15;
}

.hero-glow-2 {
    width: 400px;
    height: 400px;
    background: var(--clr-secondary);
    bottom: -5%;
    left: -5%;
    opacity: 0.12;
    animation-delay: -4s;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 860px;
}

.badge {
    display: inline-block;
    padding: 0.45rem 1.1rem;
    background: var(--badge-bg);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: var(--clr-primary);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: clamp(2.5rem, 5.5vw, 4rem);
    color: var(--hero-title-color);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    color: var(--hero-subtitle-color);
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--glass-border);
    margin-top: var(--spacing-md);
}

.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.hero-stat-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.hero-stat-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* -------- SERVICES -------- */
.services {
    background: linear-gradient(180deg, transparent, var(--clr-bg-surface) 15%, var(--clr-bg-surface) 85%, transparent);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.service-card {
    text-align: left;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--clr-primary), var(--clr-secondary));
    opacity: 0;
    transition: var(--transition-smooth);
}

.service-card:hover::before { opacity: 1; }

.icon-wrapper {
    width: 56px;
    height: 56px;
    background: var(--icon-bg);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    color: var(--clr-primary);
    font-size: 1.75rem;
    transition: var(--transition-smooth);
}

.service-card:hover .icon-wrapper {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    color: #fff;
    transform: scale(1.05);
    box-shadow: 0 8px 24px var(--clr-primary-glow);
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.65rem;
}

.service-card p {
    font-size: 0.95rem;
    line-height: 1.65;
}

/* -------- ABOUT -------- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

.about-visual .about-card {
    padding: 2.5rem;
}

.about-icon-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.about-icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem 1rem;
    border-radius: var(--radius-md);
    background: var(--icon-bg);
    border: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
}

.about-icon-item:hover {
    border-color: var(--clr-primary);
    transform: translateY(-2px);
}

.about-icon-item i {
    font-size: 2rem;
    color: var(--clr-primary);
}

.about-icon-item span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--clr-text-main);
}

.about-content h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    margin-bottom: 1rem;
}

.about-lead {
    font-size: 1.15rem;
    color: var(--clr-text-main);
    font-weight: 500;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.about-features {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.about-features li {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.95rem;
    color: var(--clr-text-muted);
}

.about-features i {
    color: var(--clr-primary);
    font-size: 1.15rem;
    flex-shrink: 0;
}

/* -------- CONTACT -------- */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    padding: 2.5rem;
    max-width: 960px;
    margin: 0 auto;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.contact-details {
    margin: 1.5rem 0;
}

.contact-details li {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    font-size: 1rem;
}

.contact-details i {
    font-size: 1.35rem;
    color: var(--clr-primary);
}

.contact-details a {
    color: var(--clr-primary);
    font-weight: 500;
}

.contact-details a:hover {
    text-decoration: underline;
}

.contact-services {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.contact-services span {
    padding: 0.35rem 0.85rem;
    background: var(--icon-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--clr-text-muted);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--clr-text-main);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.85rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    background: var(--input-bg);
    color: var(--clr-text-main);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--clr-text-muted);
    opacity: 0.7;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px var(--clr-primary-glow);
}

.form-group select option {
    background: var(--clr-bg-surface);
    color: var(--clr-text-main);
}

/* -------- FOOTER -------- */
.footer {
    background: var(--footer-bg);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    margin-bottom: 2.5rem;
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 1rem;
    filter: brightness(1.1);
}

.footer-tagline {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 0.75rem;
}

.footer-email {
    display: inline-block;
    color: var(--clr-primary);
    font-size: 0.95rem;
    font-weight: 500;
}

.footer-email:hover {
    text-decoration: underline;
}

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

.link-group h4 {
    margin-bottom: 1rem;
    color: #fff;
    font-size: 0.95rem;
}

.link-group a {
    display: block;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.link-group a:hover {
    color: var(--clr-primary);
    padding-left: 4px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.875rem;
}

/* -------- KEYFRAMES -------- */
@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(20px, -20px); }
}

/* -------- RESPONSIVE -------- */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .about-visual { order: 2; }

    .contact-wrapper {
        grid-template-columns: 1fr;
        padding: 1.75rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

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

    .nav-container {
        flex-wrap: wrap;
    }

    .nav-menu {
        position: absolute;
        top: calc(100% + 0.5rem);
        left: var(--spacing-sm);
        right: var(--spacing-sm);
        background: var(--navbar-bg);
        backdrop-filter: blur(16px);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1.25rem;
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: var(--transition-smooth);
        border: 1px solid var(--glass-border);
        border-radius: var(--radius-md);
        box-shadow: var(--glass-shadow);
    }

    .nav-menu.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }

    .hero-stats {
        gap: 1.5rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container { padding: 0 var(--spacing-sm); }

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

    .about-icon-grid {
        grid-template-columns: 1fr;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}