/*
================================================
TABLE OF CONTENTS
================================================
1.  COLOR THEME VARIABLES
2.  GLOBAL STYLES & TYPOGRAPHY
3.  HEADER & NAVIGATION
4.  BUTTONS
5.  PAGE SECTIONS & LAYOUT
6.  HERO & PAGE HEADERS
7.  CARDS (PROJECT, SERVICE, WHY-US, TESTIMONIAL)
8.  PORTFOLIO FILTER
9.  ABOUT PAGE (MONOGRAM & TIMELINE)
10. PROJECT DETAIL PAGE
11. FORMS & CONTACT PAGE
12. FOOTER & CTA
13. ANIMATIONS & UTILITIES
14. THEME SWITCHER
15. ICONS
16. SWIPER SLIDER (TESTIMONIALS)
17. MEDIA QUERIES
================================================
*/

/* 1. COLOR THEME VARIABLES */
:root {
    --color-background: #ffffff;
    --color-background-light: #f8f9fa;
    --color-text-primary: #212529;
    --color-text-secondary: #495057;
    --color-border: #dee2e6;
    --color-card-bg: #ffffff;
    --color-primary: #0d9488;
    --color-primary-hover: #0f766e;
    --color-secondary-btn-bg: #e9ecef;
    --color-secondary-btn-text: #495057;
    --color-secondary-btn-hover: #ced4da;
    --color-hero-text: #ffffff;
}
[data-theme="dark"] {
    --color-background: #121212;
    --color-background-light: #1e1e1e;
    --color-text-primary: #e0e0e0;
    --color-text-secondary: #a0a0a0;
    --color-border: #333333;
    --color-card-bg: #1e1e1e;
    --color-secondary-btn-bg: #333333;
    --color-secondary-btn-text: #e0e0e0;
    --color-secondary-btn-hover: #444444;
    --color-hero-text: #e0e0e0;
}

/* 2. GLOBAL STYLES */
*, *::before, *::after { box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; background-color: var(--color-background); color: var(--color-text-primary); line-height: 1.7; margin: 0; padding-top: 80px; transition: background-color 0.3s, color 0.3s; }
h1, h2, h3, h4 { margin-top: 0; margin-bottom: 0.5rem; font-weight: 700; line-height: 1.2; color: var(--color-text-primary); }
h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
p { margin-top: 0; margin-bottom: 1rem; color: var(--color-text-secondary); }
a { color: var(--color-primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-primary-hover); }
img { max-width: 100%; height: auto; display: block; }
ul { padding-left: 20px; }
li { margin-bottom: 0.5rem; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 15px; }

/* 3. HEADER & NAVIGATION */
#main-header { background-color: var(--color-background); border-bottom: 1px solid var(--color-border); position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; transition: background-color 0.3s, border-color 0.3s; }
.navbar { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo { font-size: 1.75rem; font-weight: 700; color: var(--color-primary); }
.logo span { color: var(--color-text-primary); }
.nav-links { display: flex; list-style: none; margin: 0; padding: 0; gap: 2rem; }
.nav-links a { color: var(--color-text-secondary); font-weight: 500; padding: 0.5rem 0; border-bottom: 2px solid transparent; }
.nav-links a:hover, .nav-links a.active { color: var(--color-text-primary); border-bottom-color: var(--color-primary); }
.nav-controls { display: flex; align-items: center; }
.mobile-menu-toggle { display: none; font-size: 2rem; background: none; border: none; color: var(--color-text-primary); cursor: pointer; }

/* 4. BUTTONS */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.85rem 2rem; border-radius: 8px; font-weight: 600; text-align: center; transition: all 0.3s ease; border: 2px solid transparent; }
.btn-primary { background-color: var(--color-primary); color: #fff; }
.btn-primary:hover { background-color: var(--color-primary-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 4px 15px rgba(13, 148, 136, 0.3); }
.btn-secondary { background-color: var(--color-secondary-btn-bg); color: var(--color-secondary-btn-text); border-color: var(--color-border); }
.btn-secondary:hover { background-color: var(--color-secondary-btn-hover); }
.btn-primary-outline { border-color: var(--color-primary); color: var(--color-primary); }
.btn-primary-outline:hover { background-color: var(--color-primary); color: #fff; }

/* 5. PAGE SECTIONS & LAYOUT */
main { display: block; }
.content-section, .home-section { padding: 5rem 0; }
.bg-light { background-color: var(--color-background-light); }
.text-center { text-align: center; }
.section-title { margin-bottom: 1rem; }
.section-subtitle { max-width: 600px; margin: 0 auto 3rem auto; color: var(--color-text-secondary); }

/* 6. HERO & PAGE HEADERS */
.hero-section-home { display: flex; align-items: center; justify-content: center; min-height: calc(100vh - 80px); padding: 3rem 0; text-align: center; background-color: var(--color-background); }
.hero-content { max-width: 800px; }
.hero-title { color: var(--color-text-primary); }
.hero-description { font-size: 1.25rem; color: var(--color-text-secondary); margin-bottom: 2rem; }
.hero-buttons { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.page-header { padding: 4rem 0; text-align: center; background-color: var(--color-background-light); border-bottom: 1px solid var(--color-border); }

/* 7. CARDS (PROJECT, SERVICE, WHY-US, TESTIMONIAL) */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.project-card { display: block; background-color: var(--color-card-bg); border: 1px solid var(--color-border); border-radius: 12px; overflow: hidden; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.project-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.08); }
[data-theme="dark"] .project-card:hover { box-shadow: 0 10px 20px rgba(0,0,0,0.2); }
.project-card img { width: 100%; height: 200px; object-fit: cover; border-bottom: 1px solid var(--color-border); }
.project-card-content { padding: 1.5rem; }
.project-category { font-family: 'Roboto Mono', monospace; font-size: 0.8rem; color: var(--color-primary); margin-bottom: 0.5rem; display: block; }
.project-card h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.project-card p { font-size: 0.95rem; }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 3rem; }
.why-card { background-color: var(--color-card-bg); border: 1px solid var(--color-border); padding: 2rem; border-radius: 12px; text-align: center; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.why-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.08); }
[data-theme="dark"] .why-card:hover { box-shadow: 0 10px 20px rgba(0,0,0,0.2); }
.why-icon { font-size: 2.5rem; margin-bottom: 1rem; color: var(--color-primary); }
.services-grid-large { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.service-card-large { background-color: var(--color-card-bg); border: 1px solid var(--color-border); border-radius: 12px; padding: 2rem; display: flex; flex-direction: column; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.service-card-large:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.08); }
[data-theme="dark"] .service-card-large:hover { box-shadow: 0 10px 20px rgba(0,0,0,0.2); }
.service-icon { width: 60px; height: 60px; border-radius: 50%; background-color: var(--color-primary); display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem; }
.service-icon .icon { font-size: 2rem; color: #fff; }
.service-card-large h3 { font-size: 1.5rem; margin-bottom: 1rem; }
.service-card-large p { color: var(--color-text-secondary); flex-grow: 1; }
.service-card-large ul { list-style: none; padding: 0; margin-top: 1.5rem; border-top: 1px solid var(--color-border); padding-top: 1.5rem; }
.service-card-large li { position: relative; padding-left: 1.5rem; margin-bottom: 0.75rem; }
.service-card-large li::before { content: '✓'; position: absolute; left: 0; color: var(--color-primary); font-weight: 700; }
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 3rem; }
.audience-card { background-color: var(--color-card-bg); border-left: 4px solid var(--color-primary); padding: 2rem; border-radius: 8px; border: 1px solid var(--color-border); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.audience-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.08); }
.audience-icon { font-size: 3rem; color: var(--color-primary); margin-bottom: 1rem; }
.audience-card h3 { font-size: 1.5rem; margin-bottom: 1rem; }
.audience-card p { color: var(--color-text-secondary); min-height: 80px; }
.audience-list { list-style: none; padding: 0; margin-top: 1.5rem; text-align: left; }
.audience-list li { position: relative; padding-left: 1.5rem; margin-bottom: 0.75rem; }
.audience-list li::before { content: '✓'; position: absolute; left: 0; color: var(--color-primary); font-weight: 700; }
.testimonial-card { position: relative; background-color: var(--color-card-bg); border: 1px solid var(--color-border); padding: 2.5rem 2rem 2rem 2rem; border-radius: 12px; text-align: left; height: 100%; display: flex; flex-direction: column; }
.testimonial-icon { position: absolute; top: -0.5rem; left: 1.5rem; font-size: 6rem; font-weight: 700; color: var(--color-primary); opacity: 0.1; line-height: 1; }
.testimonial-quote { font-size: 1.05rem; font-style: italic; color: var(--color-text-secondary); margin-bottom: 1.5rem; position: relative; z-index: 2; flex-grow: 1; }
.testimonial-attribution { margin-top: 1.5rem; border-top: 1px solid var(--color-border); padding-top: 1.5rem; }
.testimonial-author { font-weight: 700; color: var(--color-text-primary); margin: 0; }
.testimonial-title { font-size: 0.9rem; color: var(--color-text-secondary); margin: 0; }

/* 8. PORTFOLIO FILTER */
.portfolio-filter { display: flex; justify-content: center; gap: 0.5rem; margin-bottom: 3rem; flex-wrap: wrap; }
.filter-btn { background-color: var(--color-secondary-btn-bg); color: var(--color-text-secondary); border: 1px solid var(--color-border); padding: 0.5rem 1.25rem; border-radius: 20px; font-weight: 500; cursor: pointer; transition: all 0.3s ease; }
.filter-btn:hover { background-color: var(--color-secondary-btn-hover); color: var(--color-text-primary); }
.filter-btn.active { background-color: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* 9. ABOUT PAGE (MONOGRAM & TIMELINE) */
.about-grid-new { display: grid; grid-template-columns: 1fr 2fr; gap: 3rem; align-items: center; }
.about-image-placeholder { width: 250px; height: 250px; border-radius: 50%; background-color: var(--color-primary); display: flex; align-items: center; justify-content: center; margin: 0 auto; box-shadow: 0 10px 30px rgba(13, 148, 136, 0.3); }
.monogram-text { font-size: 6rem; font-weight: 700; color: #fff; line-height: 1; }
.about-buttons { margin-top: 2rem; display: flex; gap: 1rem; }
.timelines-wrapper { max-width: 800px; margin: 4rem auto 0 auto; }
.experience-section { margin-bottom: 3rem; }
.experience-section:last-child { margin-bottom: 0; }
.experience-title { text-align: center; margin-bottom: 2.5rem; }
.timeline { position: relative; border-left: 2px solid var(--color-border); }
.timeline-item { position: relative; margin-bottom: 2rem; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot { position: absolute; left: -9px; top: 0.25rem; height: 16px; width: 16px; background-color: var(--color-primary); border-radius: 50%; border: 3px solid var(--color-background-light); }
.timeline-content { margin-left: 2rem; }
.timeline-date { font-family: 'Roboto Mono', monospace; font-size: 0.85rem; color: var(--color-text-secondary); margin-bottom: 0.25rem; display: block; }
.timeline-title { font-size: 1.2rem; color: var(--color-text-primary); font-weight: 600; }
.timeline-company, .timeline-issuer { font-size: 1rem; color: var(--color-text-secondary); margin-top: 0.25rem; }
.timeline-details { font-size: 0.95rem; color: var(--color-text-secondary); padding-top: 0.5rem; }

/* 10. PROJECT DETAIL PAGE */
.project-content-grid { display: grid; grid-template-columns: 2.5fr 1fr; gap: 3rem; }
.project-hero-image { margin-bottom: 2rem; }
.project-hero-image img { border-radius: 12px; border: 1px solid var(--color-border); }
.project-section { margin-bottom: 2rem; }
.project-section h3 { margin-bottom: 1rem; border-bottom: 1px solid var(--color-border); padding-bottom: 0.5rem; }
.project-section h4 { margin-bottom: 1rem; }
.project-key-info { background-color: var(--color-background-light); border: 1px solid var(--color-border); border-radius: 12px; padding: 1.5rem; position: sticky; top: 120px; }
.tech-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tech-tag { background-color: var(--color-secondary-btn-bg); color: var(--color-secondary-btn-text); padding: 0.25rem 0.75rem; border-radius: 15px; font-size: 0.85rem; }

/* 11. FORMS & CONTACT PAGE */
.contact-grid-new { display: grid; grid-template-columns: 1fr 1.5fr; gap: 3rem; align-items: start; }
.contact-info-panel { background-color: var(--color-background-light); border: 1px solid var(--color-border); border-radius: 12px; padding: 2rem; }
.btn-whatsapp { background-color: #25D366; color: #fff; width: 100%; margin-bottom: 2rem; }
.btn-whatsapp:hover { background-color: #1DA851; color: #fff; }
.contact-details-new { list-style: none; padding: 0; margin: 0; }
.contact-details-new li { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; font-size: 1.05rem; }
.contact-details-new .icon { color: var(--color-primary); font-size: 1.5rem; }
.social-connect { margin-top: 2rem; padding-top: 2rem; border-top: 1px solid var(--color-border); }
.social-connect h4 { text-align: center; margin-bottom: 1.5rem; color: var(--color-text-secondary); }
.social-connect .footer-socials a { font-size: 1.75rem; color: var(--color-text-secondary); }
.social-connect .footer-socials a:hover { color: var(--color-text-primary); }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; font-weight: 500; margin-bottom: 0.5rem; }
.form-group input, .form-group textarea { width: 100%; padding: 0.75rem; border-radius: 8px; border: 1px solid var(--color-border); background-color: var(--color-background); color: var(--color-text-primary); font-size: 1rem; transition: border-color 0.3s, box-shadow 0.3s; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.2); }

/* 12. FOOTER & CTA */
/* FIXED: This is the final, correct version */
.cta-section {
    /* background-color: var(--color-background-light); */
    background-color:#e8e9ea;
    padding: 5rem 0;
}
.cta-title {
    color: var(--color-text-primary);
    font-size: 2.25rem;
}
.cta-text {
    color: var(--color-text-secondary);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    font-size: 1.1rem;
}

[data-theme="dark"] .cta-section {
    background-color: #1a1a1a; /* Dark Gray */
}
[data-theme="dark"] .cta-title {
    color: #fff;
}
[data-theme="dark"] .cta-text {
    color: #adb5bd;
}

#main-footer {
    padding: 2.5rem 0;
    background-color: #212529; /* Dark Charcoal */
    color: #adb5bd;
}
[data-theme="dark"] #main-footer {
    background-color: #000; /* Pure Black */
}
.footer-content { text-align: center; }
.footer-socials { display: flex; justify-content: center; gap: 1.5rem; margin-bottom: 1.5rem; }
.footer-socials a { color: #adb5bd; transition: color 0.3s; }
.footer-socials a:hover { color: #fff; }
.footer-content p { margin-bottom: 0.5rem; color: #adb5bd; }
.footer-content a:hover { color: var(--color-primary); }

/* 13. ANIMATIONS & UTILITIES */
.spinner-container { padding: 3rem; }
.spinner { margin: auto; border: 4px solid var(--color-secondary-btn-bg); border-top: 4px solid var(--color-primary); border-radius: 50%; width: 40px; height: 40px; animation: spin 1s linear infinite; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* 14. THEME SWITCHER */
.theme-switcher { width: 40px; height: 40px; background-color: var(--color-secondary-btn-bg); border: 1px solid var(--color-border); color: var(--color-text-primary); border-radius: 50%; cursor: pointer; font-size: 1.25rem; line-height: 0; transition: all 0.3s; margin-left: 1rem; display: flex; align-items: center; justify-content: center; }
.theme-switcher:hover { background-color: var(--color-secondary-btn-hover); }
.theme-switcher .icon-moon { display: none; }
.theme-switcher .icon-sun { display: block; }
[data-theme="dark"] .theme-switcher .icon-moon { display: block; }
[data-theme="dark"] .theme-switcher .icon-sun { display: none; }

/* 15. ICONS */
.icon { width: 1em; height: 1em; fill: currentColor; }
.why-icon .icon { width: 1.5em; height: 1.5em; }

/* 16. SWIPER SLIDER (TESTIMONIALS) */
.testimonial-slider { padding: 2rem 0; position: relative; }
.swiper-slide { height: auto; padding-bottom: 3rem; }
.swiper-button-next, .swiper-button-prev { color: var(--color-primary); top: 50%; transform: translateY(-150%); }
[data-theme="dark"] .swiper-button-next, [data-theme="dark"] .swiper-button-prev { color: #fff; }
.swiper-button-next:after, .swiper-button-prev:after { font-size: 1.5rem; font-weight: 900; }
.swiper-pagination-bullet { background-color: var(--color-text-secondary); opacity: 0.5; }
.swiper-pagination-bullet-active { background-color: var(--color-primary); opacity: 1; }

/* 17. MEDIA QUERIES */
@media (max-width: 992px) {
    .projects-grid, .services-grid-main, .project-content-grid { grid-template-columns: 1fr; }
    .why-grid { grid-template-columns: 1fr; gap: 2rem; }
    .about-grid-new { grid-template-columns: 1fr; text-align: center; }
    .about-image-placeholder { max-width: 200px; height: 200px; }
    .monogram-text { font-size: 5rem; }
    .about-buttons { justify-content: center; }
    .contact-grid-new { grid-template-columns: 1fr; }
    .project-sidebar { position: static; margin-top: 2rem; }
    .audience-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    body { padding-top: 70px; }
    .navbar { height: 70px; }
    .nav-links { display: none; position: absolute; top: 70px; left: 0; width: 100%; background-color: var(--color-background); flex-direction: column; text-align: center; padding: 1rem 0; border-bottom: 1px solid var(--color-border); box-shadow: 0 4px 6px rgba(0,0,0,0.05); }
    .nav-links.active { display: flex; }
    .mobile-menu-toggle { display: block; }
    h1 { font-size: 2.5rem; }
    .hero-section-home { min-height: calc(100vh - 70px); }
    .page-header, .home-section, .content-section, .cta-section { padding: 3rem 0; }
    .services-grid-main { grid-template-columns: 1fr; }
    .why-grid { grid-template-columns: 1fr; }
    .audience-card p { min-height: unset; }
    .swiper-button-next, .swiper-button-prev { display: none; }
}