/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Dark Theme (Default) */
    --primary: #0F172A;
    --primary-light: #1E293B;
    --accent: #3B82F6;
    --accent-glow: #60A5FA;
    --cyan: #06B6D4;
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    --bg-dark: #020617;
    --card-bg: rgba(30, 41, 59, 0.7);
    --border: rgba(255, 255, 255, 0.1);
    --header-bg: rgba(2, 6, 23, 0.85);
    --input-bg: rgba(255, 255, 255, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

body.light-mode {
    /* Light Theme */
    --primary: #FFFFFF;
    --primary-light: #F1F5F9;
    /* Slate 100 */
    --accent: #2563EB;
    /* Blue 600 */
    --accent-glow: #3B82F6;
    --cyan: #0891B2;
    /* Cyan 600 */
    --text-main: #0F172A;
    /* Slate 900 */
    --text-muted: #475569;
    /* Slate 600 */
    --bg-dark: #F8FAFC;
    /* Slate 50 */
    --card-bg: #FFFFFF;
    --border: #CBD5E1;
    /* Slate 300 */
    --header-bg: rgba(255, 255, 255, 0.9);
    --input-bg: #F1F5F9;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    /* Softer shadow */
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s, color 0.3s;
}

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

ul {
    list-style: none;
}

/* Utilities */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

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

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    z-index: 1;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    color: white;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.5);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--accent);
    color: white;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
    transition: padding 0.3s, background 0.3s;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-main);
}

.logo i {
    color: var(--cyan);
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-muted);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-main);
    /* Ensure active link is visible in light mode */
}

/* Theme Toggle Button */
.theme-toggle {
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: var(--transition);
    padding: 5px;
    display: flex;
    align-items: center;
}

.theme-toggle:hover {
    color: var(--accent);
}

/* Dropdown */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--card-bg);
    /* Use card bg for dropdown */
    min-width: 250px;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 1001;
}

.nav-links li:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(15px);
}

.dropdown-menu li {
    margin-bottom: 10px;
}

.dropdown-menu a {
    display: block;
    font-size: 0.95rem;
    color: var(--text-muted);
    /* Reset color context */
}

.dropdown-menu a:hover {
    color: var(--cyan);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-main);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    opacity: 0.15;
    filter: blur(80px);
    z-index: -1;
}

body.light-mode .hero::after {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--cyan) 0%, transparent 70%);
    opacity: 0.1;
    filter: blur(100px);
    z-index: -2;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}

.hero-content {
    max-width: 100%;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--text-main);
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.hero-visual {
    position: relative;
    width: 100%;
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1;
}

.circle-container {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
}

.circle-outer {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--accent);
    box-shadow: 0 0 50px rgba(59, 130, 246, 0.1);
}

.circle-inner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70%;
    height: 70%;
    border-radius: 50%;
    border: 2px solid var(--cyan);
    opacity: 0.5;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.1), transparent);
}

.floating-icon {
    font-size: 4rem;
    color: var(--cyan);
    position: absolute;
    animation: float 6s ease-in-out infinite;
    opacity: 0.8;
    z-index: 2;
}

/* Services Grid */
.service-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 40px;
    border-radius: 20px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    /* Subtle shadow base */
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: var(--shadow);
}

.service-card i {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
    color: var(--text-main);
}

.service-card p {
    color: var(--text-muted);
    margin-bottom: 20px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

/* Features/About */
.feature-section {
    background: var(--primary-light);
}

.about-img {
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow);
}

.about-img img {
    width: 100%;
    height: auto;
    display: block;
}

/* Form Styles */
.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    padding: 15px;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-main);
    margin-bottom: 20px;
    font-family: inherit;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--accent);
    outline: none;
    background: var(--card-bg);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Footer (Always Dark preferred, or adapt?)
   Let's keep footer dark for better contrast even in light mode, usually standard.
*/
footer {
    background: #020617;
    /* Always dark Slate 950 */
    color: #F8FAFC;
    padding: 80px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

footer h4 {
    color: #fff;
}

footer p,
footer li,
footer a {
    color: #94A3B8;
}

footer a:hover {
    color: var(--cyan);
}

footer .logo {
    color: #fff;
}

/* Animations */
@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in-up {
    animation: fadeIn 0.8s ease-out forwards;
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out forwards;
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out forwards;
}

/* Hover effects */
.hover-scale {
    transition: var(--transition);
}

.hover-scale:hover {
    transform: scale(1.02);
}

.hover-glow {
    transition: var(--transition);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
    border-color: var(--cyan);
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s cubic-bezier(0.5, 0, 0, 1);
}

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

/* Staggered delays */
.reveal-delay-100 {
    transition-delay: 0.1s;
}

.reveal-delay-200 {
    transition-delay: 0.2s;
}

.reveal-delay-300 {
    transition-delay: 0.3s;
}

/* Pulse Animation for CTA */
@keyframes pulse-glow {
    0% {
        box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.4);
    }

    70% {
        box-shadow: 0 0 0 20px rgba(6, 182, 212, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(6, 182, 212, 0);
    }
}

.pulse-animation {
    animation: pulse-glow 2s infinite;
}

/* Responsive */
@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .hero {
        text-align: center;
        padding-top: 120px;
    }

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

    .hero-visual {
        display: none;
    }

    .hero-content {
        max-width: 100%;
        margin: 0 auto;
    }
}

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

    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--bg-dark);
        /* Adapt to theme */
        flex-direction: column;
        padding: 30px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 999;
    }

    .nav-links.active {
        transform: translateY(0);
        box-shadow: var(--shadow);
    }

    .dropdown-menu {
        position: static;
        background: transparent;
        border: none;
        box-shadow: none;
        padding-left: 20px;
        padding-top: 10px;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
    }

    .nav-links li:hover .dropdown-menu {
        display: block;
    }

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

    .hero h1 {
        font-size: 3rem;
    }
}