/* ProjectsGurugram.com — Core Design System */
:root {
    --primary: #0f172a;        /* Slate 900 */
    --primary-light: #1e293b;  /* Slate 800 */
    --accent: #0284c7;         /* Sky 600 */
    --accent-hover: #0369a1;   /* Sky 700 */
    --success: #059669;        /* Emerald 600 */
    --success-bg: #ecfdf5;     /* Emerald 50 */
    --warning: #d97706;        /* Amber 600 */
    --warning-bg: #fffbeb;     /* Amber 50 */
    --surface: #ffffff;
    --background: #f8fafc;     /* Slate 50 */
    --border: #e2e8f0;         /* Slate 200 */
    --text: #0f172a;
    --text-muted: #64748b;     /* Slate 500 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

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

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

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header & Navigation */
.site-header {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    position: relative;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.brand:hover {
    text-decoration: none;
}

.brand-badge {
    background: #e0f2fe;
    color: #0284c7;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
}

/* Navigation & Hamburger Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 8px 7px;
}

.nav-toggle:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.hamburger-bar {
    width: 100%;
    height: 2px;
    background-color: var(--primary);
    border-radius: 2px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.main-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--primary-light);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.5rem 0.25rem;
}

.nav-link:hover {
    color: var(--accent);
    text-decoration: none;
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .main-nav {
        display: none;
        flex-direction: column;
        align-items: stretch;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 2px solid var(--border);
        box-shadow: var(--shadow-md);
        padding: 0.75rem 1rem;
        gap: 0.25rem;
        z-index: 100;
    }

    .main-nav.is-open {
        display: flex;
    }

    .nav-link {
        padding: 0.75rem 1rem;
        font-size: 1rem;
        border-radius: var(--radius-sm);
    }

    .nav-link:hover, .nav-link:focus {
        background: #f1f5f9;
        color: var(--accent);
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
    padding: 4rem 0 3rem;
    border-bottom: 1px solid var(--border);
}

.hero-title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--primary);
    letter-spacing: -1px;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 760px;
    margin-bottom: 2rem;
}

.hero-search-form {
    max-width: 650px;
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.hero-search-input {
    flex-grow: 1;
    padding: 0.85rem 1rem;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    border: 2px solid var(--border);
}

.hero-search-btn {
    padding: 0 1.75rem;
    font-size: 1rem;
    white-space: nowrap;
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    .cards-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    .hero-search-form {
        flex-direction: column;
    }
    .hero-search-btn {
        width: 100%;
        padding: 0.85rem 1rem;
    }
}

/* Stats Bar */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.25rem;
    margin-top: 2rem;
}

.stat-card {
    background: var(--surface);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    margin-top: 0.5rem;
}

/* Section Common */
.section {
    padding: 3.5rem 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border);
    padding-bottom: 0.75rem;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
}

.section-more {
    font-weight: 600;
    font-size: 0.95rem;
}

/* Project Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
    gap: 1.75rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

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

.card-header {
    padding: 1.25rem 1.25rem 0.75rem;
}

.card-badges {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
}

.badge-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid #a7f3d0;
}

.badge-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid #fde68a;
}

.badge-neutral {
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #cbd5e1;
}

.badge-accent {
    background: #e0f2fe;
    color: var(--accent);
    border: 1px solid #bae6fd;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.card-title a {
    color: var(--primary);
    text-decoration: none;
}

.card-title a:hover {
    color: var(--accent);
}

.card-developer {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.card-body {
    padding: 0 1.25rem 1rem;
    flex-grow: 1;
}

.card-meta-list {
    list-style: none;
    margin: 0.75rem 0;
    font-size: 0.88rem;
}

.card-meta-item {
    display: flex;
    justify-content: space-between;
    padding: 0.35rem 0;
    border-bottom: 1px dashed var(--border);
}

.card-meta-item:last-child {
    border-bottom: none;
}

.card-meta-label {
    color: var(--text-muted);
}

.card-meta-val {
    font-weight: 600;
}

.card-footer {
    padding: 0.75rem 1.25rem;
    background: #f8fafc;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Breadcrumbs */
.breadcrumbs {
    padding: 1rem 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.breadcrumbs a {
    color: var(--text-muted);
}

.breadcrumbs a:hover {
    color: var(--accent);
}

.breadcrumbs span {
    margin: 0 0.5rem;
}

/* Detail Page Components */
.detail-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 2.5rem 0;
}

.detail-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.detail-sub {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2.5rem;
    padding: 2.5rem 0;
}

@media (max-width: 900px) {
    .detail-grid {
        grid-template-columns: 1fr;
    }
}

.spec-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.spec-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    border-bottom: 2px solid var(--border);
    padding-bottom: 0.5rem;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 1rem;
}

.table-responsive .spec-table {
    min-width: 520px;
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
}

.spec-table th, .spec-table td {
    padding: 0.65rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.92rem;
}

.spec-table th {
    color: var(--text-muted);
    width: 35%;
    font-weight: 600;
}

.spec-table td {
    font-weight: 600;
    color: var(--primary);
}

.verification-banner {
    background: #f0fdf4;
    border-left: 4px solid var(--success);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.verification-banner strong {
    color: var(--success);
}

/* Filter Bar */
.filter-bar {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.filter-group label {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
}

.filter-select, .filter-input {
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    background-color: var(--surface);
}

.filter-select:focus, .filter-input:focus {
    outline: none;
    border-color: var(--accent);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: background 0.15s ease;
}

.btn-primary {
    background: var(--accent);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: #ffffff;
    text-decoration: none;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.btn-outline:hover {
    background: #f1f5f9;
    color: var(--text);
    text-decoration: none;
}

/* Footer */
.site-footer {
    background: var(--primary);
    color: #94a3b8;
    padding: 3.5rem 0 2rem;
    margin-top: 4rem;
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-col h4 {
    color: #ffffff;
    font-size: 1rem;
    margin-bottom: 1rem;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #cbd5e1;
    text-decoration: none;
}

.footer-links a:hover {
    color: #ffffff;
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
}