/* ==========================================================================
   1. BASE - Fonts, Reset, Variables, Base Styles
   ========================================================================== */

/* 1.1 Font Imports */
@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@500;700&family=Roboto:wght@400;500;700&display=swap');

/* 1.2 Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* 1.3 CSS Variables */
:root {
    --color-primary: #D4AF37;
    --color-primary-dark: #B8860B;
    --color-bg: #0B0B0C;
    --color-bg-card: #161617;
    --color-border: #2A2A2A;
    --color-text: #F2F2F2;
    --color-text-muted: #A0A0A0;
    --color-white: #FFFFFF;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Poppins', sans-serif;
    --transition: 0.3s ease-in-out;
    --border-radius: 6px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
}


/* 1.4 Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text-muted);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--color-text);
    font-weight: 700;
    line-height: 1.2;
    text-transform: uppercase;
}

h1 {
    font-size: clamp(3rem, 7vw, 5.5rem);
}

h2 {
    font-size: clamp(2rem, 5vw, 3rem);
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-sm);
}

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

a:hover {
    color: var(--color-primary-dark);
}

ul {
    list-style: none;
}

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

::selection {
    background-color: var(--color-primary);
    color: var(--color-bg);
}

/* ==========================================================================
   2. LAYOUT & HELPERS
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-xxl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    margin-bottom: var(--spacing-xs);
}

.section-subtitle {
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.site-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

#particle-canvas {
    width: 100%;
    height: 100%;
}

/* ==========================================================================
   3. COMPONENTS
   ========================================================================== */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    font-family: var(--font-heading);
    font-weight: 500;
    border-radius: var(--border-radius);
    cursor: pointer;
    text-align: center;
    border: 2px solid;
    transition: all var(--transition);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-bg);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 255, 127, 0.1);
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--color-border);
    color: var(--color-text);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-3px);
}

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

/* ==========================================================================
   4. HEADER & NAVIGATION
   ========================================================================== */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent;
    transition: background-color 0.4s ease, border-bottom 0.4s ease, padding 0.4s ease;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid transparent;
}

#main-header.scrolled {
    background-color: rgba(17, 17, 17, 0.85);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-border);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.nav-logo img {
    height: 45px;
    filter: invert(1);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--color-text);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

.header-cta {
    margin-left: var(--spacing-lg);
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 2px;
    margin: 6px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--color-text);
}

/* ==========================================================================
   5. FOOTER
   ========================================================================== */
#main-footer {
    background-color: #0D0D0D;
    padding-top: var(--spacing-xxl);
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-xl);
}

.footer-col h4 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.footer-col ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-logo img {
    height: 40px;
    margin-bottom: var(--spacing-sm);
}

.newsletter-form {
    display: flex;
    margin-top: var(--spacing-sm);
}

.newsletter-form input {
    flex-grow: 1;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 0.5rem;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    outline: none;
}

.newsletter-form button {
    background: var(--color-primary);
    border: 1px solid var(--color-primary);
    color: var(--color-bg);
    font-size: 1.5rem;
    padding: 0 0.75rem;
    cursor: pointer;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.footer-legal-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-legal-links a {
    color: var(--color-text-muted);
}

/* ==========================================================================
   6. PAGE-SPECIFIC STYLES
   ========================================================================== */

/* 6.1 Hero Section */
.hero {
    display: flex;
    align-items: center;
    min-height: 90vh;
    text-align: left;
}

.hero-content {
    max-width: 800px;
}

.hero-tagline {
    color: var(--color-text-muted);
    font-weight: 500;
    letter-spacing: 2px;
}

.hero-title .highlight {
    color: var(--color-primary);
}

.cursor {
    display: inline-block;
    width: 3px;
    height: 1em;
    background-color: var(--color-primary);
    margin-left: 5px;
    animation: blink 1s infinite;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    margin: var(--spacing-md) 0 var(--spacing-lg);
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* 6.2 Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    transition: transform var(--transition), box-shadow var(--transition);
    position: relative;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--border-radius);
    padding: 1px;
    background: conic-gradient(from 180deg at 50% 50%, rgba(0, 255, 127, 0.5) 0deg, rgba(0, 0, 0, 0) 360deg);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

.service-icon {
    margin-bottom: var(--spacing-sm);
}

.service-icon svg {
    width: 40px;
    height: 40px;
    fill: var(--color-primary);
}

.service-card h3 {
    margin-bottom: var(--spacing-xs);
}

/* 6.3 Industry Focus Section */
.industry-section {
    background-color: var(--color-bg-card);
}

.industry-focus-container {
    background-color: var(--color-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.industry-tabs {
    display: flex;
    background-color: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
}

.industry-tab {
    flex-grow: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-family: var(--font-heading);
    font-size: 1rem;
    cursor: pointer;
    transition: color var(--transition), background-color var(--transition);
    position: relative;
}

.industry-tab.active {
    color: var(--color-primary);
}

.industry-tab::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.industry-tab.active::after {
    transform: scaleX(1);
}

.industry-content-container {
    padding: var(--spacing-lg);
}

.industry-content {
    display: none;
}

.industry-content.active {
    display: block;
    animation: fadeIn 0.5s;
}

.industry-content h3 {
    color: var(--color-primary);
}

.industry-content ul {
    list-style: '✓ ';
    padding-left: 1.2rem;
    margin-top: var(--spacing-sm);
}

.industry-content li {
    margin-bottom: var(--spacing-xs);
    padding-left: 0.5rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* 6.4 Approach Section */
.approach-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.approach-step {
    display: flex;
    gap: var(--spacing-md);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.step-number {
    font-size: 3rem;
    font-family: var(--font-heading);
    color: var(--color-border);
    line-height: 1;
}

.step-content h3 {
    font-size: 1.25rem;
}

/* 6.5 Testimonials Section */
.testimonial-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    align-items: center;
    gap: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-bg-card), var(--color-bg));
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.testimonial-quote {
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 1.5;
    color: var(--color-text);
    border-left: 3px solid var(--color-primary);
    padding-left: var(--spacing-md);
}

.testimonial-author {
    margin-top: var(--spacing-md);
}

.author-name {
    display: block;
    font-weight: 700;
    color: var(--color-text);
}

.author-title {
    font-size: 0.9rem;
}

.testimonial-image-wrapper img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-primary);
    margin: 0 auto;
}

/* 6.6 CTA Section */
.cta-section {
    background-color: var(--color-bg-card);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
}

.cta-content p {
    margin: var(--spacing-sm) 0 var(--spacing-md);
}

/* 6.7 Contact & Legal Pages */
.page-header {
    padding: 180px 0 100px 0;
    text-align: center;
}

.page-title {
    margin-bottom: var(--spacing-sm);
}

.contact-section {
    padding-bottom: var(--spacing-xxl);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    background-color: var(--color-bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
}

.contact-info ul {
    margin-top: var(--spacing-sm);
}

.contact-info li {
    margin-bottom: var(--spacing-xs);
}

.contact-form .form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text);
    font-family: var(--font-body);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.legal-content {
    padding: var(--spacing-xxl) 0;
}

.legal-content .container {
    max-width: 800px;
}

.legal-content h2 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    font-size: 2rem;
}

.legal-content ul {
    list-style-type: disc;
    padding-left: 20px;
}

/* ==========================================================================
   7. ANIMATIONS
   ========================================================================== */
.animate-on-scroll {
    opacity: 0;
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll[data-animation="fade-in-up"] {
    transform: translateY(30px);
}

.animate-on-scroll[data-animation="zoom-in"] {
    transform: scale(0.95);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

/* ==========================================================================
   8. RESPONSIVENESS
   ========================================================================== */
@media (max-width: 992px) {
    .testimonial-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .testimonial-quote {
        border-left: none;
        border-top: 3px solid var(--color-primary);
        padding-left: 0;
        padding-top: var(--spacing-md);
    }

    .testimonial-image-wrapper {
        order: -1;
    }

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

@media (max-width: 768px) {

    /* Mobile Navigation */
    .nav-menu {
        position: fixed;
        right: -100%;
        top: 0;
        flex-direction: column;
        justify-content: center;
        background-color: var(--color-bg);
        width: 100%;
        height: 100vh;
        text-align: center;
        transition: 0.4s cubic-bezier(0.645, 0.045, 0.355, 1);
        gap: var(--spacing-lg);
    }

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

    .nav-link {
        font-size: 1.5rem;
    }

    .header-cta {
        display: none;
    }

    .hamburger {
        display: block;
        z-index: 1001;
    }

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

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero {
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .industry-tabs {
        flex-direction: column;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}