/*
Theme Name: Build Smart
Theme URI: https://buildsmart.rw
Author: Build Smart Ltd
Author URI: https://buildsmart.rw
Description: A modern, responsive construction and architecture theme for Build Smart Ltd. Features include project portfolios, service pages, and a complete content management system.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: buildsmart
Tags: construction, architecture, engineering, business, portfolio, responsive, custom-header
*/

/* ===================================
   CSS Variables - Build Smart Branding
   =================================== */
:root {
    /* Colors */
    --primary-green: #3CAF50;
    --dark-navy: #1a1d2e;
    --light-green: #8FBC8F;
    --accent-orange: #FF6B35;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --text-gray: #666666;
    
    /* Typography */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ===================================
   Reset & Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--dark-navy);
    line-height: 1.6;
    background-color: var(--white);
}

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

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

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

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-gray);
}

/* ===================================
   Container & Layout
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.wide-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

/* ===================================
   Header & Navigation
   =================================== */
.site-header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header-top {
    background: var(--dark-navy);
    color: var(--white);
    padding: var(--spacing-xs) 0;
    font-size: 0.9rem;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-top a {
    color: var(--white);
    margin-left: var(--spacing-sm);
}

.header-top a.whatsapp-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.header-top a.whatsapp-link svg {
    vertical-align: middle;
}

.header-main {
    padding: var(--spacing-sm) 0;
}

.header-main .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo img {
    height: 60px;
}

.main-navigation ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
    margin: 0;
}

.main-navigation a {
    color: var(--dark-navy);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
}

.main-navigation a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--primary-green);
    transition: var(--transition);
    transform: translateX(-50%);
}

.main-navigation a:hover::after,
.main-navigation .current-menu-item a::after {
    width: 80%;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: var(--primary-green);
    color: var(--white);
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    font-size: 1.2rem;
    border-radius: 4px;
}

/* ===================================
   Hero Section with Background Slider
   =================================== */
.hero-section {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
    overflow: hidden;
}

/* Background Slider Container */
.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* Individual Slides */
.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center 65%;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 2s ease-in-out;
    transform: scale(1.05);
}

.hero-slide.active {
    opacity: 1;
}

/* Gradient Overlay - Semi-transparent to show images */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 29, 46, 0.5) 0%, rgba(60, 175, 80, 0.4) 100%);
    z-index: 1;
}

/* Content Above Everything */
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: var(--spacing-md);
}

.hero-section h1 {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 1s ease;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-section .tagline {
    font-size: 1.5rem;
    color: #5FD068;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1.2s ease;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.7);
}

.hero-section p {
    font-size: 1.2rem;
    color: var(--white);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1.4s ease;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.8);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary-green);
    color: var(--white);
}

.btn-primary:hover {
    background: transparent;
    border-color: var(--primary-green);
    color: var(--primary-green);
}

.btn-secondary {
    background: transparent;
    border-color: var(--white);
    color: var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-green);
}

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

.btn-outline:hover {
    background: var(--primary-green);
    color: var(--white);
}

/* ===================================
   Services Section
   =================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.service-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(60,175,80,0.3);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    font-size: 2rem;
}

.service-card h3 {
    color: var(--dark-navy);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    font-size: 0.95rem;
}

/* ===================================
   Project Portfolio
   =================================== */
.portfolio-filter {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.filter-btn {
    background: transparent;
    border: 2px solid var(--primary-green);
    color: var(--primary-green);
    padding: var(--spacing-xs) var(--spacing-md);
    margin: var(--spacing-xs);
    cursor: pointer;
    border-radius: 25px;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-green);
    color: var(--white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.project-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: var(--transition);
}

.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(26,29,46,0.9), transparent);
    color: var(--white);
    padding: var(--spacing-md);
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition);
}

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

.project-card:hover .project-overlay {
    transform: translateY(0);
    opacity: 1;
}

.project-overlay h3 {
    color: var(--white);
    font-size: 1.5rem;
}

.project-overlay p {
    color: var(--primary-green);
    font-size: 0.9rem;
}

/* ===================================
   Team Section
   =================================== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.team-member-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: var(--transition);
    text-align: center;
}

.team-member-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(60, 175, 80, 0.2);
}

.team-member-photo {
    width: 100%;
    height: 300px;
    overflow: hidden;
    position: relative;
    background: var(--light-gray);
}

.team-member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.team-member-card:hover .team-member-photo img {
    transform: scale(1.1);
}

.team-member-info {
    padding: var(--spacing-md);
}

.team-member-info h3 {
    color: var(--dark-navy);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.team-position {
    color: var(--primary-green);
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.team-bio {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    text-align: left;
}

.team-contact {
    text-align: left;
    border-top: 1px solid var(--light-gray);
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.team-contact p {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin-bottom: var(--spacing-xs);
}

.team-contact a {
    color: var(--primary-green);
    text-decoration: none;
}

.team-contact a:hover {
    color: var(--accent-orange);
    text-decoration: underline;
}

/* ===================================
   Footer
   =================================== */
.site-footer {
    background: var(--dark-navy);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-widgets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-widget h3 {
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.footer-widget p,
.footer-widget a {
    color: rgba(255,255,255,0.8);
}

.footer-widget ul {
    list-style: none;
}

.footer-widget li {
    margin-bottom: var(--spacing-xs);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--spacing-sm);
    text-align: center;
    color: rgba(255,255,255,0.6);
}

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

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .hero-section {
        height: 500px;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .main-navigation {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .main-navigation.active {
        display: block;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }
    
    .main-navigation.active ul {
        flex-direction: column;
        padding: var(--spacing-sm);
    }
    
    .section {
        padding: var(--spacing-md) 0;
    }
}

/* ================================
   Clients Section
================================ */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    align-items: center;
    justify-items: center;
}

.client-logo {
    padding: var(--spacing-sm);
    background: var(--white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.client-logo:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.client-logo img {
    max-width: 120px;
    max-height: 60px;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: filter 0.3s ease, opacity 0.3s ease;
}

.client-logo:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* ================================
   Testimonials Section
================================ */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    position: relative;
}

.testimonial-quote {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.testimonial-quote .quote-icon {
    font-size: 4rem;
    color: var(--primary-green);
    opacity: 0.2;
    position: absolute;
    top: -20px;
    left: -10px;
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-quote p {
    position: relative;
    z-index: 1;
    font-style: italic;
    color: var(--text-dark);
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--light-gray);
}

.testimonial-author .author-photo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.testimonial-author .author-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-author .author-info h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--dark-navy);
}

.testimonial-author .author-info p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-gray);
}

.testimonial-card.placeholder {
    border: 2px dashed #ddd;
    background: #fafafa;
}

@media (max-width: 768px) {
    .clients-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================
   About Page - Vision & Mission
================================ */
.about-page h1 {
    margin-bottom: var(--spacing-xs);
}

.about-intro {
    max-width: 900px;
    margin-bottom: 0;
}

.about-intro p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.vision-mission-section {
    background: var(--light-gray);
    padding-top: var(--spacing-md);
    margin-top: 0;
}

.vision-mission-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.vision-card,
.mission-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.08);
    text-align: center;
}

.vision-card h2,
.mission-card h2 {
    color: var(--primary-green);
    margin-bottom: var(--spacing-md);
    font-size: 1.8rem;
}

.vision-card p,
.mission-card p {
    color: var(--text-dark);
    line-height: 1.8;
    font-size: 1.05rem;
}

.vision-card {
    border-top: 4px solid var(--primary-green);
}

.mission-card {
    border-top: 4px solid var(--dark-navy);
}

.mission-card h2 {
    color: var(--dark-navy);
}

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

/* ================================
   Icon List (Service Pages)
================================ */
.icon-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-sm);
}

.icon-list-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: var(--spacing-sm);
    background: var(--light-gray);
    border-radius: 8px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.icon-list-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.list-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.list-text {
    flex: 1;
    line-height: 1.5;
    color: var(--text-dark);
    padding-top: 8px;
}

.service-single-page h1 {
    margin-bottom: var(--spacing-sm);
}

.service-content > p:first-of-type {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-dark);
}

.service-content h3 {
    color: var(--primary-green);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

@media (max-width: 600px) {
    .icon-list {
        grid-template-columns: 1fr;
    }
}