/* ===================================
   Global Styles & Variables
   =================================== */

html, body {
    overflow-x: hidden;
}

:root {
    --primary-color: #0c1527;
    --secondary-color: #121c32;
    --accent-color: #5d8aff;
    --cta-color: #9ab4ff;
    --text-light: #e0eafc;
    --text-medium: #a7b7d1;
    --text-dark: #cbd5e0;
    --glass-background: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --card-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    --card-hover-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-light);
    background-color: var(--primary-color);
    line-height: 1.6;
    background-image: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    background-size: 400% 400%;
    animation: gradientShift 20s ease infinite;
}

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--text-light);
    line-height: 1.2;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-white { color: var(--text-light); }

.section {
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}
.section-description {
    font-size: 1.125rem;
    max-width: 48rem;
    margin: 0 auto 3rem;
    color: var(--text-medium);
}

/* ===================================
   Header & Navigation
   =================================== */
.main-header {
    background-color: transparent;
    position: fixed;
    width: 100%;
    z-index: 50;
    top: 0;
    transition: background-color 0.3s ease;
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--glass-border);
}

.main-header.scrolled {
    background-color: rgba(18, 28, 50, 0.6);
}

.header-content-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}
.logo:hover {
    color: var(--accent-color);
}
.hamburger {
    display: block;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-light);
    line-height: 1;
}
.desktop-nav { display: none; }
.desktop-menu-items {
    display: flex;
    list-style: none;
    gap: 2rem;
    font-weight: 500;
}
.desktop-menu-items a {
    color: var(--text-medium);
    text-decoration: none;
    transition: color 0.3s ease;
}
.desktop-menu-items a:hover {
    color: var(--text-light);
}
.mobile-nav {
    position: fixed;
    top: 65px;
    left: 0;
    width: 100%;
    background-color: var(--secondary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    display: none;
    z-index: 40;
    padding: 1rem 0;
    backdrop-filter: blur(8px);
}
.mobile-nav.open { display: block; }
.mobile-menu-items {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem 1.5rem;
}
.mobile-menu-items a {
    color: var(--text-light);
    text-decoration: none;
    display: block;
    font-size: 1.125rem;
    font-weight: 600;
    transition: color 0.3s ease;
}
.mobile-menu-items a:hover {
    color: var(--accent-color);
}

/* ===================================
   Hero Section
   =================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: transparent;
    position: relative;
    padding-top: 5rem;
}
.hero-bg-overlay {
    position: absolute;
    inset: 0;
    opacity: 0.15;
    background: radial-gradient(circle at top right, var(--accent-color) 0%, transparent 60%),
                radial-gradient(circle at bottom left, var(--cta-color) 0%, transparent 60%);
    z-index: 0;
}
.hero-content {
    position: relative;
    z-index: 10;
}
.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}
.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-dark);
    max-width: 48rem;
    margin: 0 auto 2.5rem;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    font-weight: 600;
    padding: 1rem 2.5rem;
    border-radius: 9999px;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    text-decoration: none;
    border: none;
    cursor: pointer;
}
.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}
.btn-primary {
    background-color: var(--accent-color);
    color: var(--primary-color);
}
.btn-primary-alt {
    background-color: transparent;
    border: 2px solid var(--cta-color);
    color: var(--cta-color);
}
.btn-primary-alt:hover {
    background-color: var(--cta-color);
    color: var(--primary-color);
}
.btn-secondary {
    background-color: var(--accent-color);
    color: var(--primary-color);
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
}
.btn-secondary:hover {
    background-color: var(--cta-color);
    color: var(--primary-color);
}

/* ===================================
   Cards & Sections
   =================================== */
.philosophy-grid, .services-cards-grid, .work-gallery, .testimonials-grid, .packages-grid, .insights-grid {
    display: grid;
    gap: 2rem;
    margin-top: 3rem;
}

.glass-card {
    background: var(--glass-background);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 0.75rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
}

.philosophy-grid { grid-template-columns: 1fr; }
.philosophy-card {
    padding: 2.5rem;
    text-align: left;
    @extend .glass-card;
}
.card-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
}
.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.card-description {
    color: var(--text-medium);
}

.services-section { background-color: transparent; }
.services-header { margin-bottom: 4rem; }
.services-cards-grid { grid-template-columns: 1fr; }
.service-card {
    padding: 2.5rem;
    position: relative;
    @extend .glass-card;
}
.service-card .card-title {
    color: var(--cta-color);
    margin-bottom: 0.75rem;
}
.service-card .card-description {
    color: var(--text-medium);
    margin: 0;
}

.work-project {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
    background: transparent;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    @extend .glass-card;
}
.work-text-content { text-align: left; }
.work-project-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}
.work-project-description {
    font-size: 1rem;
    color: var(--text-medium);
    margin-bottom: 1.5rem;
}
.work-screenshot {
    max-width: 100%;
    height: auto;
    border-radius: 0.75rem;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--primary-color);
    transition: transform 0.3s ease;
}
.work-screenshot:hover { transform: scale(1.02); }
.work-placeholder {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    padding: 2rem;
    text-align: center;
}
.placeholder-content {
    background: transparent;
    padding: 3rem;
    border-radius: 0.75rem;
    border: 2px dashed var(--text-medium);
    color: var(--text-medium);
}
.placeholder-content h3 {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.testimonials-section { background-color: transparent; }
.testimonials-grid { grid-template-columns: 1fr; }
.testimonial-card {
    padding: 2rem;
    position: relative;
    border-left: 4px solid var(--cta-color);
    @extend .glass-card;
}
.testimonial-card p {
    font-size: 1.125rem;
    font-style: italic;
    color: var(--text-light);
    margin-bottom: 1rem;
}
.testimonial-card cite {
    display: block;
    font-style: normal;
    font-weight: 500;
    color: var(--text-medium);
}

.packages-section {
    background-color: transparent;
    padding-top: 4rem;
}
.packages-grid {
    grid-template-columns: 1fr;
    align-items: center;
}
.package-card {
    padding: 2.5rem;
    text-align: center;
    border: 1px solid transparent;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    @extend .glass-card;
}
.package-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
}
.featured-package {
    border-color: var(--accent-color);
    transform: scale(1.05);
    position: relative;
    z-index: 10;
}
.featured-package:hover {
    transform: translateY(-5px) scale(1.05);
}
.package-header { margin-bottom: 1.5rem; }
.package-title { font-size: 1.75rem; margin-bottom: 0.5rem; }
.package-price { font-size: 2.5rem; font-weight: 700; color: var(--cta-color); }
.package-features {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
    font-size: 1rem;
    color: var(--text-medium);
}
.package-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.insights-section { background-color: transparent; }
.insights-grid { grid-template-columns: 1fr; }
.insight-card {
    border-radius: 0.75rem;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: transparent;
    box-shadow: none;
}
.insight-card:hover {
    transform: none;
    box-shadow: none;
}
.insight-thumbnail {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 0.75rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
}
.insight-thumbnail:hover { transform: translateY(-5px); }
.insight-content {
    padding: 1.5rem;
    text-align: left;
}
.insight-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}
.insight-meta {
    font-size: 0.875rem;
    color: var(--text-medium);
    margin-bottom: 1rem;
}
.insight-excerpt {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}
.read-more {
    color: var(--accent-color);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s ease;
}
.read-more:hover {
    color: var(--cta-color);
}

.contact-section {
    background: transparent;
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}
.contact-info { text-align: center; }
.contact-info .section-title { color: var(--text-light); }
.contact-info .section-description {
    color: var(--text-medium);
    max-width: none;
    margin-bottom: 2rem;
}
.contact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    font-size: 1.125rem;
}
.contact-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-medium);
}
.contact-list a {
    color: var(--text-medium);
    text-decoration: none;
    transition: color 0.3s ease;
}
.contact-list a:hover { color: var(--cta-color); }
.contact-form {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    @extend .glass-card;
}
.form-input {
    width: 100%;
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--glass-border);
    background-color: var(--glass-background);
    color: var(--text-light);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-input:focus {
    outline: none;
    border-color: var(--cta-color);
    box-shadow: 0 0 0 2px rgba(154, 180, 255, 0.5);
}
textarea.form-input {
    resize: vertical;
    min-height: 8rem;
}

/* ===================================
   Footer & Back-to-Top
   =================================== */
.main-footer {
    background: transparent;
    color: var(--text-medium);
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--glass-border);
    backdrop-filter: blur(8px);
}
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--cta-color);
    color: var(--primary-color);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    transform: translateY(10px);
    z-index: 100;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Keyframe Animations */
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ===================================
   Media Queries for Responsiveness
   =================================== */
@media (min-width: 769px) {
    .hamburger { display: none; }
    .desktop-nav { display: block; }
    .mobile-nav { display: none !important; }
    .philosophy-grid { grid-template-columns: repeat(3, 1fr); }
    .services-cards-grid { grid-template-columns: repeat(2, 1fr); }
    .work-project { grid-template-columns: 1fr 1fr; }
    .testimonials-grid { grid-template-columns: repeat(3, 1fr); }
    .packages-grid { grid-template-columns: repeat(3, 1fr); }
    .insights-grid { grid-template-columns: repeat(3, 1fr); }
    .contact-grid { grid-template-columns: 2fr 3fr; text-align: left; }
    .contact-info { text-align: left; }
    .contact-list { align-items: flex-start; }
    .hero-title { font-size: 4.5rem; }
    .hero-subtitle { font-size: 1.5rem; }
}

@media (min-width: 1024px) {
    .services-cards-grid { grid-template-columns: repeat(4, 1fr); }
}