/* ===================================
   PAKHAL CONSTRUCTION - PREMIUM STYLESHEET
   Professional Construction Company Website
   =================================== */

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

:root {
    /* Color Palette - Refined */
    --color-primary: #1a1a1a;
    --color-primary-rgb: 26, 26, 26;
    --color-secondary: #2563eb;
    --color-accent: #d97706;
    --color-text: #111827;
    --color-text-secondary: #4b5563;
    --color-text-muted: #6b7280;
    --color-background: #ffffff;
    --color-background-alt: #f9fafb;
    --color-background-dark: #111827;
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --spacing-4xl: 8rem;

    /* Layout */
    --container-width: 1200px;
    --container-narrow: 800px;
    --header-height: 72px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

address {
    font-style: normal;
}


/* --- Container --- */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}


/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
}

h3 {
    font-size: 1.25rem;
}

p {
    color: var(--color-text-secondary);
}


/* --- Section Styling --- */
.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.section-label-light {
    color: rgba(255, 255, 255, 0.7);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-3xl);
}

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

.section-desc {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
}


/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    text-align: center;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: inherit;
    white-space: nowrap;
}

.btn svg {
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.btn:hover svg {
    transform: translateX(2px);
}

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

.btn-primary:hover {
    background-color: #000000;
    border-color: #000000;
}

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

.btn-outline:hover {
    background-color: var(--color-background-alt);
    border-color: var(--color-text-muted);
}

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

.btn-white:hover {
    background-color: var(--color-background-alt);
    border-color: var(--color-background-alt);
}

.btn-outline-light {
    background-color: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-full {
    width: 100%;
}


/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.header-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    color: #ffffff;
    border-radius: var(--radius-sm);
}

.logo-text-wrap {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-text {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.05em;
}

.logo-sub {
    font-size: 0.625rem;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 0.08em;
}

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

.nav-list a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-list a:hover {
    color: var(--color-text);
    background-color: var(--color-background-alt);
}

.nav-cta {
    background-color: var(--color-primary) !important;
    color: #ffffff !important;
    margin-left: var(--spacing-sm);
}

.nav-cta:hover {
    background-color: #000000 !important;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    transition: all var(--transition-fast);
    border-radius: 2px;
}


/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--header-height) + var(--spacing-3xl)) 0 var(--spacing-3xl);
    background-color: var(--color-background-alt);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-background-alt) 0%, #e5e7eb 100%);
    clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 100%);
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 640px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 100px;
    margin-bottom: var(--spacing-lg);
}

.hero-badge span {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-secondary);
}

.hero-title {
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.hero-title span {
    color: var(--color-secondary);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 520px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.trust-item {
    display: flex;
    flex-direction: column;
}

.trust-item strong {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.trust-item span {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.trust-divider {
    width: 1px;
    height: 40px;
    background-color: var(--color-border);
}


/* --- Services Section --- */
.services {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.service-item {
    position: relative;
    padding: var(--spacing-xl);
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-slow);
}

.service-item:hover {
    border-color: var(--color-secondary);
    transform: translateY(-4px);
}

.service-number {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-border);
}

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--color-background-alt);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
    transition: all var(--transition-base);
}

.service-item:hover .service-icon {
    background-color: var(--color-secondary);
    color: #ffffff;
}

.service-title {
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.service-desc {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.services-more {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.services-more p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

.services-more strong {
    color: var(--color-text-secondary);
}


/* --- About Section --- */
.about {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background-alt);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-content .section-title {
    text-align: left;
}

.about-text {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: var(--spacing-sm);
    background-color: var(--color-background);
    border-radius: var(--radius-sm);
}

.feature-item svg {
    flex-shrink: 0;
    color: var(--color-secondary);
}

.feature-item span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.about-image {
    position: relative;
}

.about-image img,
.about-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.about-image-badge {
    position: absolute;
    bottom: -20px;
    left: -20px;
    background-color: var(--color-primary);
    color: #ffffff;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
}

.badge-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.badge-text {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 4px;
    opacity: 0.8;
}


/* --- Director Section --- */
.director {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background);
}

.director-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.director-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.director-content .section-title {
    text-align: left;
    margin-bottom: var(--spacing-xl);
}

.director-quote {
    position: relative;
    margin: 0;
    padding-left: var(--spacing-xl);
    border-left: 3px solid var(--color-secondary);
}

.director-quote p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.director-quote p:last-child {
    margin-bottom: 0;
}

.director-info {
    margin-top: var(--spacing-xl);
}

.director-signature {
    display: flex;
    flex-direction: column;
}

.director-name {
    font-size: 1.125rem;
    color: var(--color-primary);
}

.director-title {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}


/* --- Projects Section --- */
.projects {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background-alt);
}

.projects-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.projects-gallery .project-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    aspect-ratio: 1;
}

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

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.5) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.projects-gallery .project-item:hover img {
    transform: scale(1.05);
}

.projects-gallery .project-item:hover .project-overlay {
    opacity: 1;
}


/* --- CTA Section --- */
.cta {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background-dark);
}

.cta-content {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.cta-title {
    color: #ffffff;
    margin-bottom: var(--spacing-md);
}

.cta-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}


/* --- Contact Section --- */
.contact {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background);
}

.contact-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-3xl);
}

.contact-intro {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-background-alt);
    border-radius: var(--radius-md);
}

.contact-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background-color: var(--color-background);
    border-radius: var(--radius-sm);
    color: var(--color-secondary);
    flex-shrink: 0;
}

.contact-card-content strong {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text);
    margin-bottom: 4px;
}

.contact-card-content p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.contact-card-content a:hover {
    color: var(--color-secondary);
}

.contact-form-wrapper {
    background-color: var(--color-background-alt);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    font-size: 0.9375rem;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-background);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    margin-top: var(--spacing-sm);
}


/* --- Footer --- */
.footer {
    background-color: var(--color-background-dark);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer .logo {
    margin-bottom: var(--spacing-md);
}

.footer .logo-icon {
    background-color: #ffffff;
    color: var(--color-primary);
}

.footer .logo-text {
    color: #ffffff;
}

.footer .logo-sub {
    color: rgba(255, 255, 255, 0.5);
}

.footer-desc {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    max-width: 280px;
}

.footer-location {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

.footer-links h4 {
    color: #ffffff;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
}

.footer-badges {
    color: rgba(255, 255, 255, 0.5) !important;
}


/* --- Animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}


/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid {
        gap: var(--spacing-2xl);
    }

    .director-grid {
        grid-template-columns: 280px 1fr;
        gap: var(--spacing-2xl);
    }

    .projects-gallery {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-3xl: 4rem;
        --spacing-4xl: 5rem;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .nav-list {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--color-background);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: 0;
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-list.active {
        display: flex;
    }

    .nav-list a {
        padding: var(--spacing-sm);
        border-radius: 0;
    }

    .nav-cta {
        margin-left: 0;
        margin-top: var(--spacing-sm);
        text-align: center;
    }

    .hero {
        min-height: auto;
        padding: calc(var(--header-height) + var(--spacing-2xl)) 0 var(--spacing-2xl);
    }

    .hero-bg {
        display: none;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-trust {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }

    .trust-divider {
        display: none;
    }

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

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

    .about-image {
        order: -1;
    }

    .about-image-badge {
        bottom: -16px;
        left: 16px;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .director-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .director-image {
        max-width: 280px;
        margin: 0 auto;
    }

    .projects-gallery {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-trust {
        justify-content: space-between;
    }

    .trust-item strong {
        font-size: 1.25rem;
    }

    .projects-gallery {
        grid-template-columns: 1fr;
    }

    .projects-gallery .project-item {
        aspect-ratio: 4/3;
    }

    .about-image-badge {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .badge-number {
        font-size: 1.5rem;
    }
}