/* ==========================================================================
   DDC - DIHEN DESIGN & CONSTRUCTIONS
   Custom Style CSS - Pixel-Perfect Design System
   ========================================================================== */

:root {
    --color-navy-primary: #062953;
    --color-navy-dark: #041B38;
    --color-navy-light: #0A376B;
    --color-orange-primary: #F36F21;
    --color-orange-dark: #D8590E;
    --color-orange-light: #FFF5F0;
    --color-text-dark: #1E293B;
    --color-text-body: #475569;
    --color-text-muted: #64748B;
    --color-slate-300: #CBD5E1;
    --color-slate-400: #94A3B8;
    --color-bg-light: #F8FAFC;
    --color-border-light: #E2E8F0;
    
    --font-inter: 'Inter', sans-serif;
    --font-montserrat: 'Montserrat', sans-serif;
}

body {
    font-family: var(--font-inter);
    color: var(--color-text-body);
    background-color: #FFFFFF;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography Utilities */
.font-montserrat {
    font-family: var(--font-montserrat);
}

.font-inter {
    font-family: var(--font-inter);
}

.text-navy-primary {
    color: var(--color-navy-primary) !important;
}

.text-orange {
    color: var(--color-orange-primary) !important;
}

.text-slate-300 {
    color: var(--color-slate-300) !important;
}

.text-slate-400 {
    color: var(--color-slate-400) !important;
}

.bg-navy-primary {
    background-color: var(--color-navy-primary) !important;
}

.bg-navy-dark {
    background-color: var(--color-navy-dark) !important;
}

.bg-orange-primary {
    background-color: var(--color-orange-primary) !important;
}

/* Header & Navbar */
.site-header {
    z-index: 1030;
    background-color: #FFFFFF;
}

.brand-name {
    font-size: 1.15rem;
    letter-spacing: -0.2px;
}

.brand-subtext {
    font-size: 0.68rem;
    letter-spacing: 0.4px;
}

.navbar-links-custom .nav-link {
    color: #334155;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    transition: color 0.2s ease-in-out;
}

.navbar-links-custom .nav-link:hover,
.navbar-links-custom .nav-link.active {
    color: var(--color-navy-primary) !important;
}

/* Custom Buttons */
.btn-navy-primary {
    background-color: var(--color-navy-primary);
    color: #FFFFFF;
    border: 1px solid var(--color-navy-primary);
    padding: 0.65rem 1.35rem;
    font-size: 0.82rem;
    letter-spacing: 0.5px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.btn-navy-primary:hover {
    background-color: var(--color-navy-dark);
    border-color: var(--color-navy-dark);
    color: #FFFFFF;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(6, 41, 83, 0.25);
}

.btn-navy-outline {
    background-color: transparent;
    color: var(--color-navy-primary);
    border: 1px solid var(--color-navy-primary);
    padding: 0.65rem 1.35rem;
    font-size: 0.82rem;
    letter-spacing: 0.5px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.btn-navy-outline:hover {
    background-color: var(--color-navy-primary);
    color: #FFFFFF;
    transform: translateY(-1px);
}

/* Hero Section */
.hero-section {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
    background-color: #FFFFFF;
}

.hero-title-main {
    font-size: 3.2rem;
    line-height: 1.15;
    letter-spacing: -0.5px;
}

.hero-img-wrapper {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.hero-img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

/* Bottom Feature Bar */
.feature-bar-section {
    background-color: var(--color-navy-primary);
    padding: 1.75rem 0;
}

.feature-item-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--color-orange-primary);
    color: #FFFFFF;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.feature-item-title {
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.feature-item-subtext {
    font-size: 0.75rem;
    line-height: 1.3;
}

/* Section Headings */
.section-subtitle {
    color: var(--color-orange-primary);
    font-size: 0.82rem;
    letter-spacing: 1px;
}

.section-title {
    color: var(--color-navy-primary);
    font-size: 2.2rem;
    line-height: 1.25;
}

.section-title-line {
    width: 50px;
    height: 3px;
    background-color: var(--color-navy-primary);
    margin: 0.75rem auto 0 auto;
}

/* About Us Section */
.about-section {
    padding: 5rem 0;
    background-color: #FFFFFF;
}

.about-graphic-container {
    position: relative;
    padding-bottom: 30px;
    padding-left: 20px;
}

.about-sketch-card {
    border: 1px solid var(--color-border-light);
    border-radius: 6px;
    overflow: hidden;
    background: #FFF;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.about-accent-box-orange {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 70px;
    height: 70px;
    background-color: var(--color-orange-primary);
    z-index: 2;
}

.about-accent-box-navy {
    position: absolute;
    bottom: -15px;
    left: 35px;
    width: 70px;
    height: 70px;
    background-color: var(--color-navy-primary);
    z-index: 1;
}

.about-checklist-icon {
    color: var(--color-orange-primary);
    font-size: 1rem;
}

/* Services Section */
.services-section {
    padding: 5rem 0;
    background-color: var(--color-bg-light);
}

.service-card {
    background-color: #FFFFFF;
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    padding: 2.5rem 1.5rem;
    transition: all 0.3s ease;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.08);
    border-color: rgba(243, 111, 33, 0.3);
}

.service-icon-wrapper {
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-orange-primary);
    font-size: 2.2rem;
    margin-bottom: 1.25rem;
}

.service-card-title {
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    color: var(--color-text-dark);
}

.service-card-text {
    font-size: 0.82rem;
    color: var(--color-text-body);
}

/* Projects Section */
.projects-section {
    padding: 5rem 0;
    background-color: #FFFFFF;
}

.project-card {
    background-color: #FFFFFF;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.project-img-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 6px;
}

.project-img {
    width: 100%;
    height: 230px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.project-card:hover .project-img {
    transform: scale(1.04);
}

.project-card-title {
    font-size: 1.05rem;
    color: var(--color-text-dark);
}

.project-location {
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

.project-link {
    color: var(--color-orange-primary);
    font-size: 0.85rem;
    transition: gap 0.2s ease;
}

.project-link:hover {
    color: var(--color-orange-dark);
}

/* Process Section */
.process-section {
    padding: 5rem 0;
    background-color: var(--color-navy-primary);
    position: relative;
}

.process-timeline {
    position: relative;
}

.process-timeline-line {
    position: absolute;
    top: 32px;
    left: 10%;
    right: 10%;
    height: 2px;
    border-top: 2px dashed rgba(255, 255, 255, 0.3);
    z-index: 1;
}

.process-step-item {
    position: relative;
    z-index: 2;
    text-align: center;
}

.process-circle-badge {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: #FFFFFF;
    color: var(--color-orange-primary);
    font-size: 1.5rem;
    margin: 0 auto 0.75rem auto;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.process-number {
    color: var(--color-orange-primary);
    font-size: 1.1rem;
}

.process-title {
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.process-subtext {
    font-size: 0.78rem;
    color: var(--color-slate-300);
}

/* CTA Contact Banner */
.cta-banner-section {
    padding: 4.5rem 0;
    background: linear-gradient(135deg, #F1F5F9 0%, #E2E8F0 100%);
    position: relative;
    overflow: hidden;
}

.cta-bg-pattern {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 45%;
    background-image: url('../images/cta-blueprint.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    mix-blend-mode: multiply;
}

.contact-icon-badge {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background-color: var(--color-orange-primary);
    color: #FFFFFF;
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* Footer Styling */
.site-footer {
    background-color: var(--color-navy-dark);
}

.border-navy-light {
    border-color: rgba(255, 255, 255, 0.08) !important;
}

.border-navy-separator {
    border-color: rgba(255, 255, 255, 0.15);
}

.social-btn {
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    color: #FFFFFF;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-btn:hover {
    background-color: var(--color-orange-primary);
    color: #FFFFFF;
    transform: translateY(-2px);
}

.hover-orange {
    transition: color 0.2s ease;
}

.hover-orange:hover {
    color: var(--color-orange-primary) !important;
}

.fs-7 {
    font-size: 0.85rem;
}

/* ==========================================
   CLIENT TESTIMONIALS SECTION
   ========================================== */
.testimonials-section {
    padding: 5rem 0;
    background-color: var(--color-bg-light);
    position: relative;
    overflow: hidden;
}

.testimonial-card {
    background-color: #FFFFFF;
    border: 1px solid var(--color-border-light);
    border-radius: 12px;
    padding: 2.25rem 2rem;
    box-shadow: 0 8px 25px rgba(6, 41, 83, 0.05);
    transition: all 0.35s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 35px rgba(6, 41, 83, 0.12);
    border-color: rgba(243, 111, 33, 0.4);
}

.testimonial-quote-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--color-orange-light);
    color: var(--color-orange-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.testimonial-rating {
    color: #F59E0B;
    font-size: 0.9rem;
}

.testimonial-text {
    color: #334155;
    font-size: 0.95rem;
    line-height: 1.7;
    font-style: italic;
}

.testimonial-initial-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-navy-primary), var(--color-navy-light));
    color: #FFFFFF;
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-orange-primary);
    box-shadow: 0 4px 10px rgba(243, 111, 33, 0.2);
    flex-shrink: 0;
}

.testimonial-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-orange-primary);
    box-shadow: 0 4px 10px rgba(243, 111, 33, 0.2);
    flex-shrink: 0;
}

.testimonial-client-name {
    color: var(--color-navy-primary);
    font-size: 1.05rem;
}

.testimonial-client-role {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.testimonial-project-badge {
    background-color: rgba(6, 41, 83, 0.06);
    color: var(--color-navy-primary);
    border-radius: 20px;
    padding: 0.25rem 0.85rem;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}

/* Custom Carousel Controls */
.testimonial-carousel .carousel-indicators {
    bottom: -3.5rem;
    margin-bottom: 0;
}

.testimonial-carousel .carousel-indicators [data-bs-target] {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-navy-primary);
    opacity: 0.25;
    border: none;
    transition: all 0.3s ease;
}

.testimonial-carousel .carousel-indicators .active {
    opacity: 1;
    background-color: var(--color-orange-primary);
    width: 28px;
    border-radius: 6px;
}

.testimonial-carousel-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: #FFFFFF;
    color: var(--color-navy-primary);
    border: 1px solid var(--color-border-light);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    opacity: 0.9;
}

.testimonial-carousel-btn:hover {
    background-color: var(--color-navy-primary);
    color: #FFFFFF;
    border-color: var(--color-navy-primary);
    transform: scale(1.08);
}

/* ==========================================
   MOBILE BOTTOM NAVIGATION BAR
   ========================================== */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 64px;
    background: rgba(4, 27, 56, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 -10px 25px rgba(0, 0, 0, 0.2);
    z-index: 1080;
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0 0.5rem;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #94A3B8;
    text-decoration: none;
    font-size: 0.68rem;
    font-weight: 600;
    font-family: var(--font-montserrat);
    letter-spacing: 0.3px;
    flex: 1;
    height: 100%;
    padding: 6px 0;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.mobile-nav-item i {
    font-size: 1.15rem;
    margin-bottom: 2px;
    transition: transform 0.25s ease, color 0.25s ease;
}

.mobile-nav-item:hover,
.mobile-nav-item.active {
    color: var(--color-orange-primary);
}

.mobile-nav-item.active i {
    transform: translateY(-2px) scale(1.15);
    color: var(--color-orange-primary);
}

.mobile-nav-item.active::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    background-color: var(--color-orange-primary);
    border-radius: 0 0 4px 4px;
    box-shadow: 0 2px 8px rgba(243, 111, 33, 0.6);
}

.mobile-nav-call-btn {
    background: linear-gradient(135deg, var(--color-orange-primary), #D8590E);
    color: #FFFFFF !important;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    margin-top: -16px;
    box-shadow: 0 6px 16px rgba(243, 111, 33, 0.45);
    border: 3px solid #041B38;
}

.mobile-nav-call-btn i {
    font-size: 1.1rem !important;
    margin-bottom: 0 !important;
}

.mobile-nav-call-btn.active::after {
    display: none;
}

/* ==========================================
   SCROLL REVEAL ANIMATIONS
   ========================================== */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.75s cubic-bezier(0.165, 0.84, 0.44, 1), transform 0.75s cubic-bezier(0.165, 0.84, 0.44, 1);
    will-change: opacity, transform;
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.75s cubic-bezier(0.165, 0.84, 0.44, 1), transform 0.75s cubic-bezier(0.165, 0.84, 0.44, 1);
    will-change: opacity, transform;
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.75s cubic-bezier(0.165, 0.84, 0.44, 1), transform 0.75s cubic-bezier(0.165, 0.84, 0.44, 1);
    will-change: opacity, transform;
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.75s cubic-bezier(0.165, 0.84, 0.44, 1), transform 0.75s cubic-bezier(0.165, 0.84, 0.44, 1);
    will-change: opacity, transform;
}

/* Active State when triggered by Observer */
.reveal-on-scroll.is-visible,
.reveal-left.is-visible,
.reveal-right.is-visible,
.reveal-scale.is-visible {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
}

/* Animation Stagger Delays */
.delay-100 { transition-delay: 0.1s !important; }
.delay-200 { transition-delay: 0.2s !important; }
.delay-300 { transition-delay: 0.3s !important; }
.delay-400 { transition-delay: 0.4s !important; }
.delay-500 { transition-delay: 0.5s !important; }

/* ==========================================
   PAGE PRELOADER STYLES
   ========================================== */
.preloader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--color-navy-dark, #041B38);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s cubic-bezier(0.165, 0.84, 0.44, 1), visibility 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.preloader-overlay.preloader-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-svg {
    filter: drop-shadow(0 0 16px rgba(243, 111, 33, 0.4));
    animation: preloaderPulse 1.8s ease-in-out infinite alternate;
}

.preloader-spinner-wrapper {
    display: flex;
    justify-content: center;
}

.preloader-spinner {
    width: 38px;
    height: 38px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid var(--color-orange-primary, #F36F21);
    border-radius: 50%;
    animation: preloaderSpin 0.85s linear infinite;
}

.preloader-progress-bar {
    width: 180px;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}

.preloader-progress-fill {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--color-orange-primary), #FF9E64);
    animation: preloaderProgress 1.6s ease-in-out infinite;
    transform-origin: left;
}

@keyframes preloaderPulse {
    0% { transform: scale(0.96); opacity: 0.85; }
    100% { transform: scale(1.04); opacity: 1; }
}

@keyframes preloaderSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes preloaderProgress {
    0% { transform: translateX(-100%); }
    50% { transform: translateX(0%); }
    100% { transform: translateX(100%); }
}

/* Responsive Overrides */
@media (max-width: 991.98px) {
    body {
        padding-bottom: 64px;
    }

    .site-header .navbar-collapse {
        background-color: #FFFFFF;
        padding: 1.25rem 1.5rem;
        border-radius: 10px;
        box-shadow: 0 12px 35px rgba(6, 41, 83, 0.15);
        margin-top: 0.75rem;
        border: 1px solid var(--color-border-light);
    }

    .site-header .navbar-toggler {
        padding: 0.45rem 0.75rem;
        border: 1px solid var(--color-border-light);
        border-radius: 6px;
        outline: none !important;
        box-shadow: none !important;
        cursor: pointer;
    }

    .site-header .navbar-toggler:focus,
    .site-header .navbar-toggler:active {
        box-shadow: 0 0 0 3px rgba(243, 111, 33, 0.25) !important;
        border-color: var(--color-orange-primary);
    }

    .hero-title-main {
        font-size: 2.4rem;
    }
    
    .process-timeline-line {
        display: none;
    }
    
    .cta-bg-pattern {
        display: none;
    }
}

@media (max-width: 575.98px) {
    .hero-title-main {
        font-size: 1.9rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
}