/* ========================================
   Swastikaa Infra Builders - Main Stylesheet
   Contemporary Real Estate Design
   ======================================== */

/* ===== CSS Variables ===== */
:root {
    /* Color Palette - Sophisticated Warm Tones */
    --primary: #C17B3A;
    --primary-dark: #9A5E2A;
    --primary-light: #D69654;
    --secondary: #2C3E50;
    --secondary-dark: #1A252F;
    --accent: #E8B871;
    --text-dark: #1A1A1A;
    --text-light: #F5F5F5;
    --text-muted: #6C757D;
    --background: #FAFAFA;
    --white: #FFFFFF;
    --success: #27AE60;
    --warning: #F39C12;
    --danger: #E74C3C;
    
    /* Fonts */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Outfit', sans-serif;
    
    /* Spacing */
    --section-padding: 100px;
    --section-padding-mobile: 60px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.15);
    --shadow-hover: 0 12px 50px rgba(193,123,58,0.25);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Global Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--background);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--secondary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: 1rem;
}

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

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

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

/* ===== Navigation ===== */
#mainNav {
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary) 100%);
    padding: 1rem 0;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

#mainNav.scrolled {
    padding: 0.5rem 0;
    background: rgba(44, 62, 80, 0.98);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.brand-icon {
    color: var(--accent);
    font-size: 1.5rem;
    transition: var(--transition);
}

.navbar-brand:hover .brand-icon {
    transform: scale(1.1) rotate(-5deg);
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1.2rem !important;
    position: relative;
    transition: var(--transition);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.navbar-nav .nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::before,
.navbar-nav .nav-link.active::before {
    width: 80%;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--accent) !important;
}

.btn-contact {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white) !important;
    border-radius: 50px;
    padding: 0.6rem 1.5rem !important;
    margin-left: 1rem;
}

.btn-contact::before {
    display: none;
}

.btn-contact:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* ===== Hero Section ===== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary) 50%, var(--primary-dark) 100%);
    overflow: hidden;
    padding-top: 80px;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(193,123,58,0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(232,184,113,0.2) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
}

.hero-title {
    color: var(--white);
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-weight: 300;
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.4s backwards;
}

.btn-primary-custom {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    border: none;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary-custom:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

.btn-outline-custom {
    background: transparent;
    color: var(--white);
    padding: 1rem 2.5rem;
    border: 2px solid var(--white);
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-outline-custom:hover {
    background: var(--white);
    color: var(--primary);
    transform: translateY(-3px);
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.feature-title {
    color: var(--white);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.feature-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

/* ===== Section Styles ===== */
.section {
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-subtitle {
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.section-description {
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* ===== Cards ===== */
.card-custom {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-slow);
    height: 100%;
    border: none;
}

.card-custom:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.card-img-wrapper {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.card-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.card-custom:hover .card-img-wrapper img {
    transform: scale(1.1);
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    opacity: 0;
    transition: var(--transition);
}

.card-custom:hover .card-overlay {
    opacity: 1;
}

.card-body-custom {
    padding: 2rem;
}

.card-title-custom {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary);
}

.card-text-custom {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.card-link {
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.card-link:hover {
    gap: 1rem;
}

/* ===== Service Cards ===== */
.service-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-slow);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover::before {
    transform: scaleX(1);
}

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

.service-icon {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    color: var(--primary-dark);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-description {
    color: var(--text-muted);
}

/* ===== Project Grid ===== */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-slow);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.project-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    box-shadow: var(--shadow-md);
}

.project-info {
    padding: 2rem;
}

.project-type {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.project-title {
    font-size: 1.6rem;
    margin-bottom: 1rem;
}

.project-location {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid #eee;
    font-size: 0.9rem;
}

.project-meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.project-meta-label {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.project-meta-value {
    color: var(--secondary);
    font-weight: 600;
}

/* ===== Timeline ===== */
.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary), var(--accent));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: calc(50% + 2rem);
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: calc(50% + 2rem);
    text-align: right;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
    z-index: 2;
}

.timeline-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.timeline-date {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.timeline-description {
    color: var(--text-muted);
}

/* ===== Blog Cards ===== */
.blog-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-slow);
    height: 100%;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.blog-image {
    height: 250px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.blog-card:hover .blog-image img {
    transform: scale(1.1);
}

.blog-content {
    padding: 2rem;
}

.blog-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.blog-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.blog-title a {
    color: var(--secondary);
    transition: var(--transition);
}

.blog-title a:hover {
    color: var(--primary);
}

.blog-excerpt {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.blog-read-more {
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.blog-read-more:hover {
    gap: 1rem;
}

/* ===== Partner Logos ===== */
.partner-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.partner-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 150px;
}

.partner-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.partner-item img {
    max-height: 80px;
    filter: grayscale(100%);
    transition: var(--transition);
}

.partner-item:hover img {
    filter: grayscale(0%);
}

/* ===== Footer ===== */
.footer {
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary) 100%);
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.footer-waves {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px;
    overflow: hidden;
}

.footer-waves svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.footer-section {
    margin-bottom: 2rem;
}

.footer-title {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.footer-subtitle {
    color: var(--accent);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-description {
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.footer-contact p {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-contact i {
    color: var(--accent);
    width: 20px;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 5px;
}

.footer-bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright {
    margin: 0;
    font-size: 0.9rem;
}

.admin-link {
    color: var(--accent);
    font-weight: 500;
    transition: var(--transition);
}

.admin-link:hover {
    color: var(--white);
}

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@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);
    }
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 4rem;
        margin-right: 0;
        text-align: left;
    }
    
    .timeline-marker {
        left: 20px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: var(--section-padding-mobile) 0;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .project-grid {
        grid-template-columns: 1fr;
    }
    
    .partner-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
}

/* ===== Utility Classes ===== */
.bg-primary { background-color: var(--primary) !important; }
.bg-secondary { background-color: var(--secondary) !important; }
.text-primary { color: var(--primary) !important; }
.text-secondary { color: var(--secondary) !important; }

.mt-section { margin-top: var(--section-padding); }
.mb-section { margin-bottom: var(--section-padding); }