/* ============================================
   IntellivizeMinde - Luxurious Dark Theme
   Uber-inspired Black & Blue Aesthetic
   ============================================ */

/* ============================================
   CSS Variables
   ============================================ */

:root {
    /* Color Palette (Literals) */
    --color-black: #000000;
    --color-rich-black: #050505;
    --color-dark-gray: #0A0A0A;
    --color-white: #FFFFFF;
    --color-off-white: #F5F5F7;
    --color-text-dark: #1D1D1F;
    --color-text-gray: #86868B;

    /* Brand Colors */
    --color-accent-blue: #0066FF;
    --color-accent-light-blue: #3399FF;

    /* Semantic Theme Variables (Default: Dark) */
    --bg-primary: var(--color-black);
    --bg-secondary: var(--color-rich-black);
    --bg-tertiary: var(--color-dark-gray);
    --bg-glass: rgba(255, 255, 255, 0.03);

    --text-primary: var(--color-white);
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);

    --border-color: rgba(255, 255, 255, 0.05);
    --shadow-color: rgba(0, 0, 0, 0.4);

    /* Spacing */
    --container-width: 1200px;
    --container-padding: 24px;
    --section-spacing: 120px;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Hero Theming (Default: Dark) */
    --hero-bg-gradient: radial-gradient(circle at 50% 50%, #0a0a0a 0%, #000000 100%);
    --bg-overlay-gradient: radial-gradient(circle at 50% 50%, transparent 0%, #000000 80%);
    --grid-line-color: rgba(255, 255, 255, 0.03);
    --hero-text-gradient: linear-gradient(135deg, #FFFFFF 0%, #CCCCCC 100%);

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg-primary: var(--color-white);
    --bg-secondary: var(--color-white);
    --bg-tertiary: #FFFFFF;
    --bg-glass: rgba(0, 0, 0, 0.03);

    --bg-hover-card: #FFFFFF;
    /* Remain white on hover */

    --text-primary: var(--color-text-dark);
    --text-secondary: #424245;
    --text-muted: var(--color-text-gray);

    --border-color: rgba(0, 0, 0, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
    /* Stronger shadow for lift */

    /* Hero Theming */
    --hero-bg-gradient: radial-gradient(circle at 50% 50%, #FFFFFF 0%, #FAFAFA 100%);
    --bg-overlay-gradient: radial-gradient(circle at 50% 50%, transparent 0%, #FFFFFF 80%);
    --grid-line-color: rgba(0, 0, 0, 0.05);
    --hero-text-gradient: linear-gradient(135deg, #1D1D1F 0%, #434344 100%);
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

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

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: var(--font-primary);
}

/* ============================================
   Navigation
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 24px 0;
    transition: all var(--transition-smooth);
    background: transparent;
}

.nav.scrolled {
    padding: 16px 0;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-link {
    font-size: 0.95rem;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent-blue);
    transition: width var(--transition-smooth);
}

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

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

/* ============================================
   Hero Section
   ============================================ */

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    z-index: 1;
    background: var(--hero-bg-gradient);
}

.grid-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    width: 200%;
    height: 200%;
    background-image:
        linear-gradient(var(--grid-line-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line-color) 1px, transparent 1px);
    background-size: 50px 50px;
    transform: perspective(500px) rotateX(60deg) translateY(-100px) translateZ(-200px);
    animation: gridMove 20s linear infinite;
    opacity: 0.5;
}

@keyframes gridMove {
    0% {
        transform: perspective(500px) rotateX(60deg) translateY(0) translateZ(-200px);
    }

    100% {
        transform: perspective(500px) rotateX(60deg) translateY(50px) translateZ(-200px);
    }
}

.hero-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    bottom: 0;
    background: var(--bg-overlay-gradient);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: var(--container-width);
    padding: 0 var(--container-padding);
    text-align: center;
}

.hero-title {
    font-size: 5rem;
    font-weight: 700;
    margin-bottom: 24px;
    background: var(--hero-text-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-accent-blue);
    margin-bottom: 24px;
    font-weight: 500;
    letter-spacing: 0.05em;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease 0.2s forwards;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 48px;
    font-weight: 300;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease 0.4s forwards;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background-color: var(--color-accent-blue);
    color: var(--color-white);
    font-size: 1.1rem;
    font-weight: 500;
    border-radius: 100px;
    transition: all var(--transition-fast);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease 0.6s forwards;
}

.cta-button:hover {
    background-color: var(--color-accent-light-blue);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 102, 255, 0.3);
}

.cta-button svg {
    transition: transform var(--transition-fast);
}

.cta-button:hover svg {
    transform: translateX(4px);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: fadeIn 1s ease 1s forwards;
}

.scroll-line {
    width: 2px;
    height: 60px;
    background: linear-gradient(to bottom, var(--text-secondary), transparent);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, var(--color-accent-blue), transparent);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0% {
        transform: translateY(-100%);
    }

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

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

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* ============================================
   Services Section
   ============================================ */

.services {
    padding: var(--section-spacing) 0;
    background-color: var(--bg-secondary);
    position: relative;
}

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

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 300;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.service-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 32px;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-8px);
    background: var(--bg-hover-card);
    border-color: var(--border-color);
    /* Subtle border change if needed, or accent? */
    box-shadow: 0 20px 40px var(--shadow-hover),
        0 0 0 1px var(--border-color);
}

.service-image {
    width: 100%;
    height: 200px;
    background: radial-gradient(circle at center, #1a1a1a, #0a0a0a);
    border-radius: 16px;
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.service-card:hover .service-image img {
    transform: scale(1.05);
}

.service-icon-placeholder svg {
    width: 60%;
    height: 60%;
    filter: drop-shadow(0 0 20px rgba(0, 102, 255, 0.2));
}

.service-title {
    font-size: 1.75rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.service-description {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 24px;
    line-height: 1.7;
}

.service-features {
    list-style: none;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.service-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    background-color: var(--color-accent-blue);
    border-radius: 50%;
}

/* ============================================
   About Section
   ============================================ */

.about {
    padding: var(--section-spacing) 0;
    background-color: var(--bg-primary);
    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-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

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

.about-text .lead-text {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 32px;
    line-height: 1.4;
}

.about-text p {
    margin-bottom: 24px;
}

.about-stats {
    display: grid;
    gap: 32px;
}

.stat-item {
    background: var(--bg-glass);
    padding: 24px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    display: flex;
    gap: 24px;
    align-items: flex-start;
    transition: var(--transition-fast);
}

.stat-item:hover {
    background: var(--bg-tertiary);
    transform: translateX(10px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    color: var(--color-accent-blue);
    flex-shrink: 0;
}

.stat-title {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.stat-text {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* ============================================
   Contact Section
   ============================================ */

.contact {
    padding: var(--section-spacing) 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 32px;
    padding: 64px;
    backdrop-filter: blur(10px);
}

.contact-intro {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

.contact-email {
    display: inline-flex;
    align-items: center;
    gap: 24px;
    background: var(--bg-tertiary);
    padding: 4px;
    /* Slightly adjusted padding */
    padding-left: 32px;
    border-radius: 100px;
    transition: all var(--transition-bounce);
    border: 1px solid var(--border-color);
    /* Added border definition for light mode visibility */
}

.contact-email:hover {
    transform: scale(1.02);
    box-shadow: 0 0 40px var(--shadow-color);
}

.email-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    /* Changed from dark-gray to be semantic */
    opacity: 0.8;
}

.email-address {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
    /* Changed from black to semantic */
}

.email-arrow {
    width: 56px;
    height: 56px;
    background: var(--color-accent-blue);
    /* Kept blue for pop */
    color: white;
    border-radius: 50%;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    padding: 60px 0;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0.8;
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.footer-logo:hover {
    opacity: 1;
}

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

/* Make nav logo a link without default link styles */
.nav-logo {
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.nav-logo:hover {
    opacity: 0.8;
}

.footer-copyright {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.footer-tagline {
    font-size: 0.8rem;
    color: var(--color-accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .container {
        padding: 0 24px;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-spacing: 80px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
        /* Can implement mobile menu if requested */
    }

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

    .contact-card {
        padding: 32px;
    }

    .contact-email {
        flex-direction: column;
        padding: 24px;
        /* Mobile padding */
        width: 100%;
        background: var(--bg-tertiary);
        border: 1px solid var(--border-color);
        gap: 16px;
        text-align: center;
        border-radius: 24px;
        /* More rounded on mobile */
    }

    .contact-email .email-label {
        color: var(--text-secondary);
        font-size: 0.8rem;
    }

    .contact-email .email-address {
        word-break: break-all;
        /* Prevent overflow */
        font-size: 1.1rem;
        color: var(--text-primary);
        margin-bottom: 8px;
    }

    .contact-email .email-arrow {
        width: 48px;
        height: 48px;
        margin: 0 auto;
        border-radius: 50%;
        /* Ensure circular */
        padding: 12px;
    }

    .footer-content {
        flex-direction: column;
        gap: 32px;
        text-align: center;
    }

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

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--bg-glass);
}

.theme-toggle svg {
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.theme-toggle:hover svg {
    transform: rotate(15deg);
}

@media (max-width: 768px) {
    .nav-right {
        gap: 16px !important;
    }
}