/* ============================================
   مؤسسة فاطمة الشهراني للمقاولات
   Premium Construction Website - Stylesheet
   ============================================ */

:root {
    --primary: #0B1D3A;
    --primary-light: #132d54;
    --secondary: #1E88E5;
    --accent: #42A5F5;
    --accent-light: #90CAF9;
    --white: #FFFFFF;
    --dark: #050d1a;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-500: #8a9bb5;
    --gray-700: #4a5568;
    --gold: #D4AF37;
    --green: #2E7D32;
    --brown: #6D4C41;

    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
    --gradient-dark: linear-gradient(180deg, var(--dark) 0%, var(--primary) 100%);

    --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(0,0,0,0.16);
    --shadow-xl: 0 16px 60px rgba(0,0,0,0.2);
    --shadow-glow: 0 0 30px rgba(30,136,229,0.3);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;

    --transition: all 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
    --transition-fast: all 0.2s ease;
    --transition-slow: all 0.6s cubic-bezier(0.25,0.46,0.45,0.94);

    --font: 'Tajawal', sans-serif;
}

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

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

body { font-family:var(--font); background:var(--white); color:var(--primary); line-height:1.7; overflow-x:hidden; }
body.loading { overflow:hidden; }

a { text-decoration:none; color:inherit; transition:var(--transition-fast); }
ul { list-style:none; }
img { max-width:100%; height:auto; display:block; }
button { cursor:pointer; border:none; outline:none; background:none; font-family:var(--font); }
input, textarea, select { font-family:var(--font); outline:none; }

.container { max-width:1280px; margin:0 auto; padding:0 24px; }
.section { padding:100px 0; position:relative; }

/* ========== UTILITY ========== */
.text-gradient {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-label { display:flex; align-items:center; gap:12px; margin-bottom:16px; }
.center .section-label { justify-content:center; }
.label-line { width:40px; height:2px; background:var(--gradient-secondary); border-radius:2px; }
.label-text { font-size:0.95rem; font-weight:600; color:var(--secondary); letter-spacing:1px; }
.section-title { font-size:clamp(1.8rem,4vw,2.8rem); font-weight:800; line-height:1.3; margin-bottom:16px; }
.section-desc { font-size:1.1rem; color:var(--gray-500); max-width:600px; line-height:1.8; }
.center { text-align:center; }
.center .section-desc { margin:0 auto; }

/* ========== BUTTONS ========== */
.btn {
    display:inline-flex; align-items:center; gap:10px; padding:14px 32px;
    border-radius:var(--radius-xl); font-size:1rem; font-weight:700;
    transition:var(--transition); position:relative; overflow:hidden; border:none;
}
.btn::before {
    content:''; position:absolute; top:0; left:-100%; width:100%; height:100%;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);
    transition:var(--transition-slow);
}
.btn:hover::before { left:100%; }

.btn-primary { background:var(--gradient-secondary); color:var(--white); box-shadow:0 4px 20px rgba(30,136,229,0.4); }
.btn-primary:hover { transform:translateY(-3px); box-shadow:0 8px 30px rgba(30,136,229,0.5); }

.btn-outline { background:transparent; color:var(--white); border:2px solid rgba(255,255,255,0.4); backdrop-filter:blur(10px); }
.btn-outline:hover { background:rgba(255,255,255,0.1); border-color:var(--white); transform:translateY(-3px); }

.btn-white { background:var(--white); color:var(--primary); box-shadow:var(--shadow-lg); }
.btn-white:hover { transform:translateY(-3px); box-shadow:var(--shadow-xl); }

.btn-outline-white { background:transparent; color:var(--white); border:2px solid rgba(255,255,255,0.5); }
.btn-outline-white:hover { background:rgba(255,255,255,0.1); border-color:var(--white); transform:translateY(-3px); }

.btn-glow { animation:btnGlow 2s ease-in-out infinite alternate; }
@keyframes btnGlow { from{box-shadow:0 4px 20px rgba(30,136,229,0.4)} to{box-shadow:0 4px 30px rgba(30,136,229,0.7),0 0 60px rgba(30,136,229,0.3)} }

.btn-block { width:100%; justify-content:center; }

/* ========== PRELOADER ========== */
#preloader {
    position:fixed; inset:0; background:rgba(10,22,40,1); z-index:99999;
    display:flex; align-items:center; justify-content:center;
    transition:opacity 0.6s ease, visibility 0.6s ease;
}
#preloader.hidden { opacity:0; visibility:hidden; }
.loader-content { text-align:center; display:flex; flex-direction:column; align-items:center; }
.loader-icon { margin-bottom:28px; animation:loaderPulse 1.5s ease-in-out infinite; }
.loader-icon img { border-radius:var(--radius-md); box-shadow:0 8px 40px rgba(30,136,229,0.2); }
@keyframes loaderPulse { 0%,100%{transform:scale(1);opacity:1} 50%{transform:scale(1.08);opacity:0.8} }
.loader-bar { width:240px; height:3px; background:rgba(255,255,255,0.08); border-radius:4px; overflow:hidden; margin:0 auto 20px; }
.loader-bar-fill { width:0; height:100%; background:var(--gradient-secondary); border-radius:4px; animation:loaderFill 2s ease-in-out forwards; }
@keyframes loaderFill { to{width:100%} }
.loader-text { color:rgba(255,255,255,0.6); font-size:1rem; font-weight:500; letter-spacing:0.5px; }

/* ========== HEADER ========== */
#header {
    position:fixed; top:0; left:0; right:0; z-index:1000; padding:16px 0; transition:var(--transition);
    background:linear-gradient(180deg, rgba(10,22,40,0.9) 0%, rgba(10,22,40,0.4) 100%);
}
#header.scrolled {
    padding:8px 0; background:rgba(10,22,40,0.97); backdrop-filter:blur(20px);
    border-bottom:1px solid rgba(30,136,229,0.15); box-shadow:0 4px 30px rgba(0,0,0,0.4);
}

.header-container { max-width:1280px; margin:0 auto; padding:0 24px; display:flex; align-items:center; justify-content:space-between; }

.logo { display:flex; align-items:center; gap:12px; z-index:1001; }
.logo-img { height:70px; width:auto; transition:var(--transition); border-radius:var(--radius-sm); filter:drop-shadow(0 2px 8px rgba(0,0,0,0.3)); }
#header.scrolled .logo-img { height:52px; }
.logo-text { display:flex; flex-direction:column; line-height:1.2; }
.logo-name { font-size:1.3rem; font-weight:900; color:var(--white); letter-spacing:0.5px; }
.logo-sub { font-size:0.75rem; font-weight:600; color:var(--accent); letter-spacing:1px; }
#header.scrolled .logo-name { font-size:1.1rem; }
#header.scrolled .logo-sub { font-size:0.65rem; }

.nav-list { display:flex; align-items:center; gap:8px; }
.nav-link {
    padding:8px 18px; color:rgba(255,255,255,0.75); font-size:0.95rem; font-weight:500;
    border-radius:var(--radius-xl); transition:var(--transition);
}
.nav-link:hover, .nav-link.active { color:var(--white); background:rgba(30,136,229,0.15); }

.header-actions { display:flex; align-items:center; gap:16px; }
.header-cta {
    display:flex; align-items:center; gap:8px; padding:10px 24px;
    background:var(--gradient-secondary); color:var(--white); border-radius:var(--radius-xl);
    font-size:0.9rem; font-weight:600; transition:var(--transition);
    box-shadow:0 4px 15px rgba(30,136,229,0.3);
}
.header-cta:hover { transform:translateY(-2px); box-shadow:0 6px 25px rgba(30,136,229,0.5); }
.header-cta i { font-size:1.1rem; }

.menu-toggle { display:none; flex-direction:column; gap:6px; padding:8px; z-index:1001; }
.menu-toggle span { width:28px; height:2px; background:var(--white); border-radius:2px; transition:var(--transition); }
.menu-toggle.active span:nth-child(1) { transform:rotate(45deg) translateY(5.5px) translateX(5.5px); }
.menu-toggle.active span:nth-child(2) { opacity:0; }
.menu-toggle.active span:nth-child(3) { transform:rotate(-45deg) translateY(-5.5px) translateX(5.5px); }

/* ========== HERO ========== */
.hero { min-height:100vh; display:flex; align-items:center; justify-content:center; position:relative; overflow:hidden; padding:120px 0 80px; }
.hero-bg { position:absolute; inset:0; background:var(--dark); }

.hero-slider { position:absolute; inset:0; }
.hero-slide {
    position:absolute; inset:0; opacity:0; transition:opacity 1.5s ease-in-out;
    background-size:cover; background-position:center; background-repeat:no-repeat;
}
.hero-slide.active { opacity:1; }

.hero-overlay {
    position:absolute; inset:0; z-index:1;
    background:
        linear-gradient(180deg, rgba(5,13,26,0.7) 0%, rgba(11,29,58,0.6) 50%, rgba(5,13,26,0.8) 100%),
        radial-gradient(ellipse at 20% 50%, rgba(30,136,229,0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(66,165,245,0.1) 0%, transparent 50%);
}

.hero-particles { position:absolute; inset:0; overflow:hidden; z-index:1; }

.hero-content { position:relative; z-index:2; text-align:center; max-width:900px; margin:0 auto; padding:0 24px; }

.hero-badge {
    display:inline-flex; align-items:center; gap:10px; padding:10px 24px;
    background:rgba(30,136,229,0.1); border:1px solid rgba(30,136,229,0.3);
    border-radius:var(--radius-xl); color:var(--accent-light); font-size:0.9rem;
    font-weight:500; margin-bottom:32px; backdrop-filter:blur(10px);
}
.hero-badge i { font-size:0.7rem; color:var(--gold); }

.hero-title {
    font-size:clamp(2.5rem,6vw,4.5rem); font-weight:900; color:var(--white);
    line-height:1.2; margin-bottom:24px;
}
.hero-title .text-gradient {
    background:linear-gradient(135deg,var(--accent) 0%,var(--accent-light) 50%,var(--white) 100%);
    -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}

.hero-subtitle { font-size:clamp(1rem,2vw,1.25rem); color:rgba(255,255,255,0.7); line-height:1.8; margin-bottom:40px; max-width:700px; margin-left:auto; margin-right:auto; }

.hero-buttons { display:flex; align-items:center; justify-content:center; gap:16px; flex-wrap:wrap; margin-bottom:60px; }

.hero-stats { display:flex; align-items:center; justify-content:center; gap:40px; flex-wrap:wrap; }
.hero-stat { text-align:center; }
.hero-stat-number { font-size:2.5rem; font-weight:900; color:var(--white); line-height:1; margin-bottom:4px; }
.hero-stat-number::before { content:'+'; color:var(--accent); }
.hero-stat-label { font-size:0.9rem; color:rgba(255,255,255,0.6); font-weight:500; }
.hero-stat-divider { width:1px; height:40px; background:rgba(255,255,255,0.15); }

.hero-scroll { position:absolute; bottom:40px; left:50%; transform:translateX(-50%); z-index:2; }
.scroll-indicator { display:flex; flex-direction:column; align-items:center; gap:8px; color:rgba(255,255,255,0.5); font-size:0.8rem; transition:var(--transition); }
.scroll-indicator:hover { color:var(--white); }
.scroll-arrow { animation:scrollBounce 2s ease-in-out infinite; }
@keyframes scrollBounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(8px)} }

/* ========== ABOUT ========== */
.about-grid { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }

.about-img-main { border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow-xl); }

.about-visual {
    width:100%; height:500px; background:var(--gradient-primary); position:relative;
    display:flex; align-items:center; justify-content:center;
}
.about-visual-grid {
    display:grid; grid-template-columns:1fr 1fr; gap:16px;
    position:absolute; inset:30px; z-index:1;
}
.av-item {
    background:rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.1);
    border-radius:var(--radius-md); display:flex; flex-direction:column;
    align-items:center; justify-content:center; gap:10px;
    transition:var(--transition); backdrop-filter:blur(5px);
}
.av-item i { font-size:2.2rem; color:var(--accent); transition:var(--transition); }
.av-item span { font-size:0.9rem; color:rgba(255,255,255,0.7); font-weight:600; }
.av-item:hover { background:rgba(30,136,229,0.15); border-color:rgba(30,136,229,0.3); transform:scale(1.03); }
.av-item:hover i { color:var(--white); transform:scale(1.2); }

.about-visual-center {
    position:absolute; z-index:2; background:rgba(11,29,58,0.9); backdrop-filter:blur(15px);
    border:2px solid rgba(30,136,229,0.3); border-radius:50%; width:120px; height:120px;
    display:flex; flex-direction:column; align-items:center; justify-content:center; gap:6px;
    box-shadow:var(--shadow-glow);
}
.about-visual-center i { font-size:2rem; color:var(--accent); }
.about-visual-center span { font-size:0.7rem; color:rgba(255,255,255,0.8); font-weight:700; }

.about-img-float {
    position:absolute; bottom:-30px; left:-30px; padding:24px 32px;
    background:rgba(11,29,58,0.95)!important; border:1px solid rgba(30,136,229,0.3)!important;
    z-index:2; border-radius:var(--radius-lg);
}
.about-experience { display:flex; align-items:center; gap:16px; }
.about-exp-number { font-size:3rem; font-weight:900; background:var(--gradient-secondary); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; line-height:1; }
.about-exp-text { font-size:0.9rem; color:rgba(255,255,255,0.8); line-height:1.5; font-weight:500; }

.about-images { position:relative; }
.about-text { font-size:1.05rem; color:var(--gray-700); margin-bottom:16px; line-height:1.9; }
.about-features { display:flex; flex-direction:column; gap:20px; margin:32px 0; }
.about-feature { display:flex; align-items:flex-start; gap:16px; }
.about-feature-icon {
    width:50px; height:50px; min-width:50px; background:rgba(30,136,229,0.1);
    border-radius:var(--radius-md); display:flex; align-items:center; justify-content:center;
    color:var(--secondary); font-size:1.2rem; transition:var(--transition);
}
.about-feature:hover .about-feature-icon { background:var(--gradient-secondary); color:var(--white); transform:scale(1.1); }
.about-feature h4 { font-size:1.05rem; font-weight:700; margin-bottom:4px; }
.about-feature p { font-size:0.9rem; color:var(--gray-500); line-height:1.6; }

/* ========== SERVICES ========== */
.services { background:var(--gray-100); overflow:hidden; }
.services-bg { position:absolute; top:0; left:0; right:0; height:400px; background:var(--gradient-dark); clip-path:ellipse(80% 100% at 50% 0%); }
.services .section-header { position:relative; z-index:2; }
.services .section-title { color:var(--white); }
.services .section-desc { color:rgba(255,255,255,0.7); }
.services .label-text { color:var(--accent-light); }

.services-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:24px; margin-top:60px; position:relative; z-index:2; }

.service-card {
    background:var(--white); border-radius:var(--radius-lg); padding:40px 32px;
    position:relative; overflow:hidden; transition:var(--transition);
    box-shadow:var(--shadow-sm); border:1px solid transparent;
}
.service-card-bg { position:absolute; top:0; left:0; right:0; height:4px; background:var(--gradient-secondary); transition:var(--transition); }
.service-card:hover { transform:translateY(-10px); box-shadow:var(--shadow-xl); border-color:rgba(30,136,229,0.15); }
.service-card:hover .service-card-bg { height:100%; opacity:0.03; }

.service-icon {
    width:70px; height:70px; background:rgba(30,136,229,0.08); border-radius:var(--radius-md);
    display:flex; align-items:center; justify-content:center; font-size:1.8rem;
    color:var(--secondary); margin-bottom:24px; transition:var(--transition);
}
.service-card:hover .service-icon { background:var(--gradient-secondary); color:var(--white); transform:scale(1.1) rotate(-5deg); box-shadow:var(--shadow-glow); }

.service-title { font-size:1.3rem; font-weight:800; margin-bottom:12px; }
.service-desc { font-size:0.95rem; color:var(--gray-500); line-height:1.8; margin-bottom:20px; }

.service-features { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:24px; }
.service-features span { display:inline-flex; align-items:center; gap:6px; font-size:0.82rem; color:var(--secondary); background:rgba(30,136,229,0.06); padding:6px 14px; border-radius:var(--radius-xl); font-weight:500; }
.service-features span i { font-size:0.7rem; }

.service-link { display:inline-flex; align-items:center; gap:8px; font-size:0.95rem; font-weight:700; color:var(--secondary); transition:var(--transition); }
.service-link:hover { gap:12px; color:var(--primary); }

/* ========== PROJECTS ========== */
.projects-filter { display:flex; align-items:center; justify-content:center; gap:10px; margin:40px 0; flex-wrap:wrap; }
.filter-btn { padding:10px 28px; border-radius:var(--radius-xl); font-size:0.95rem; font-weight:600; color:var(--gray-500); background:var(--gray-100); transition:var(--transition); border:2px solid transparent; }
.filter-btn:hover { color:var(--secondary); border-color:rgba(30,136,229,0.2); }
.filter-btn.active { background:var(--gradient-secondary); color:var(--white); box-shadow:0 4px 15px rgba(30,136,229,0.3); }

.projects-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(350px,1fr)); gap:24px; }
.project-card { border-radius:var(--radius-lg); overflow:hidden; transition:var(--transition); }
.project-card.hidden { display:none; }

.project-img { position:relative; height:300px; overflow:hidden; border-radius:var(--radius-lg); cursor:pointer; }

.project-img img {
    width:100%; height:100%; object-fit:cover; transition:var(--transition-slow);
}
.project-card:hover .project-img img { transform:scale(1.08); }

.project-overlay {
    position:absolute; inset:0;
    background:linear-gradient(180deg,transparent 30%,rgba(11,29,58,0.95) 100%);
    display:flex; align-items:flex-end; padding:24px; opacity:0; transition:var(--transition);
}
.project-card:hover .project-overlay { opacity:1; }
.project-info { color:var(--white); transform:translateY(20px); transition:var(--transition); width:100%; }
.project-card:hover .project-info { transform:translateY(0); }
.project-category { display:inline-block; padding:4px 14px; background:rgba(30,136,229,0.3); border-radius:var(--radius-xl); font-size:0.8rem; font-weight:600; color:var(--accent-light); margin-bottom:8px; }
.project-title { font-size:1.2rem; font-weight:700; margin-bottom:4px; }
.project-info p { font-size:0.9rem; color:rgba(255,255,255,0.7); }

/* ========== WHY US ========== */
.why-us { background:var(--gray-100); overflow:hidden; }
.why-us-bg { position:absolute; top:0; right:0; width:400px; height:400px; background:radial-gradient(circle,rgba(30,136,229,0.08),transparent 70%); border-radius:50%; }

.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; margin:50px 0; }
.stat-card {
    text-align:center; padding:40px 24px; background:var(--white);
    border:1px solid rgba(30,136,229,0.08); border-radius:var(--radius-lg); transition:var(--transition);
}
.stat-card:hover { transform:translateY(-8px); box-shadow:var(--shadow-lg); border-color:rgba(30,136,229,0.2); }
.stat-icon { width:60px; height:60px; background:rgba(30,136,229,0.08); border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:1.5rem; color:var(--secondary); margin:0 auto 16px; transition:var(--transition); }
.stat-card:hover .stat-icon { background:var(--gradient-secondary); color:var(--white); transform:scale(1.1); }
.stat-number { font-size:2.5rem; font-weight:900; color:var(--primary); line-height:1; margin-bottom:8px; }
.stat-number::before { content:'+'; color:var(--secondary); }
.stat-label { font-size:0.95rem; color:var(--gray-500); font-weight:600; }

.features-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:40px; }
.feature-card {
    background:var(--white); border-radius:var(--radius-lg); padding:36px 28px;
    transition:var(--transition); position:relative; overflow:hidden; border:1px solid rgba(30,136,229,0.05);
}
.feature-card:hover { transform:translateY(-8px); box-shadow:var(--shadow-lg); border-color:rgba(30,136,229,0.15); }
.feature-number { position:absolute; top:16px; left:20px; font-size:3rem; font-weight:900; color:rgba(30,136,229,0.06); line-height:1; }
.feature-icon { width:56px; height:56px; background:rgba(30,136,229,0.08); border-radius:var(--radius-md); display:flex; align-items:center; justify-content:center; font-size:1.4rem; color:var(--secondary); margin-bottom:20px; transition:var(--transition); }
.feature-card:hover .feature-icon { background:var(--gradient-secondary); color:var(--white); transform:rotate(-5deg) scale(1.1); }
.feature-card h3 { font-size:1.15rem; font-weight:700; margin-bottom:10px; }
.feature-card p { font-size:0.92rem; color:var(--gray-500); line-height:1.8; }

/* ========== TESTIMONIALS ========== */
.testimonials { background:var(--gradient-dark); overflow:hidden; }
.testimonials .section-title { color:var(--white); }
.testimonials .label-text { color:var(--accent-light); }

.testimonials-slider { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:50px; }
.testimonial-card {
    padding:32px; background:rgba(255,255,255,0.05); border:1px solid rgba(255,255,255,0.08);
    border-radius:var(--radius-lg); transition:var(--transition);
}
.testimonial-card:hover { background:rgba(255,255,255,0.08); transform:translateY(-5px); border-color:rgba(30,136,229,0.3); }
.testimonial-stars { display:flex; gap:4px; margin-bottom:20px; color:var(--gold); font-size:0.9rem; }
.testimonial-text { font-size:1rem; color:rgba(255,255,255,0.8); line-height:1.9; margin-bottom:24px; font-style:italic; }
.testimonial-author { display:flex; align-items:center; gap:12px; }
.testimonial-avatar { width:48px; height:48px; background:rgba(30,136,229,0.2); border-radius:50%; display:flex; align-items:center; justify-content:center; color:var(--accent); font-size:1.2rem; }
.testimonial-author h4 { font-size:1rem; font-weight:700; color:var(--white); }
.testimonial-author span { font-size:0.85rem; color:rgba(255,255,255,0.5); }

/* ========== CTA ========== */
.cta { background:var(--gradient-secondary); position:relative; overflow:hidden; padding:80px 0; }
.cta-bg { position:absolute; inset:0; background:radial-gradient(circle at 20% 50%,rgba(255,255,255,0.1),transparent 50%),radial-gradient(circle at 80% 50%,rgba(0,0,0,0.1),transparent 50%); }
.cta-content { position:relative; text-align:center; z-index:2; }
.cta-content h2 { font-size:clamp(1.8rem,4vw,2.5rem); font-weight:800; color:var(--white); margin-bottom:16px; }
.cta-content p { font-size:1.1rem; color:rgba(255,255,255,0.85); margin-bottom:32px; }
.cta-buttons { display:flex; align-items:center; justify-content:center; gap:16px; flex-wrap:wrap; }

/* ========== CONTACT ========== */
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:40px; margin-top:50px; }

.contact-info-card { background:var(--white); border:1px solid var(--gray-200); border-radius:var(--radius-lg); padding:32px; margin-bottom:24px; }
.contact-item { display:flex; align-items:center; gap:16px; padding:16px 0; }
.contact-item:not(:last-child) { border-bottom:1px solid var(--gray-200); }
.contact-item-icon { width:50px; height:50px; min-width:50px; background:rgba(30,136,229,0.08); border-radius:var(--radius-md); display:flex; align-items:center; justify-content:center; font-size:1.2rem; color:var(--secondary); }
.contact-item h4 { font-size:0.95rem; font-weight:700; margin-bottom:2px; }
.contact-item a, .contact-item p { font-size:0.95rem; color:var(--gray-500); }
.contact-item a:hover { color:var(--secondary); }

.contact-map { border-radius:var(--radius-lg); overflow:hidden; border:1px solid var(--gray-200); }

.contact-form { background:var(--white); border:1px solid var(--gray-200); border-radius:var(--radius-lg); padding:40px; }
.contact-form h3 { font-size:1.3rem; font-weight:700; margin-bottom:28px; }

.form-group { margin-bottom:20px; }
.form-field { position:relative; }
.form-field input, .form-field textarea, .form-field select {
    width:100%; padding:16px 20px 16px 48px; background:var(--gray-100);
    border:2px solid transparent; border-radius:var(--radius-md); font-size:1rem;
    color:var(--primary); transition:var(--transition);
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
    border-color:var(--secondary); background:var(--white); box-shadow:0 0 0 4px rgba(30,136,229,0.1);
}
.form-field label { position:absolute; right:48px; top:50%; transform:translateY(-50%); font-size:0.95rem; color:var(--gray-500); transition:var(--transition); pointer-events:none; }
.form-field textarea ~ label { top:20px; transform:none; }
.form-field input:focus ~ label, .form-field input:not(:placeholder-shown) ~ label,
.form-field textarea:focus ~ label, .form-field textarea:not(:placeholder-shown) ~ label {
    top:-10px; right:16px; font-size:0.8rem; color:var(--secondary); background:var(--white); padding:2px 8px; border-radius:4px;
}
.form-icon { position:absolute; right:16px; top:50%; transform:translateY(-50%); color:var(--gray-500); font-size:1rem; transition:var(--transition); }
.form-field textarea ~ .form-icon { top:20px; transform:none; }
.form-field input:focus ~ .form-icon, .form-field textarea:focus ~ .form-icon { color:var(--secondary); }
.form-field select { cursor:pointer; appearance:none; }

/* ========== FOOTER ========== */
.footer { background:var(--dark); }
.footer-top { padding:80px 0 40px; }
.footer-grid { display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:40px; }
.footer-logo { display:flex; align-items:center; gap:12px; margin-bottom:16px; }
.footer-logo-img { height:80px; width:auto; }
.footer-about { font-size:0.95rem; color:rgba(255,255,255,0.6); line-height:1.8; }
.footer-col h3 { font-size:1.1rem; font-weight:700; color:var(--white); margin-bottom:20px; position:relative; padding-bottom:12px; }
.footer-col h3::after { content:''; position:absolute; bottom:0; right:0; width:40px; height:2px; background:var(--gradient-secondary); border-radius:2px; }
.footer-links li { margin-bottom:10px; }
.footer-links a { font-size:0.95rem; color:rgba(255,255,255,0.6); transition:var(--transition); }
.footer-links a:hover { color:var(--accent); padding-right:8px; }
.footer-contact li { display:flex; align-items:center; gap:12px; margin-bottom:14px; color:rgba(255,255,255,0.6); font-size:0.95rem; }
.footer-contact li i { color:var(--secondary); font-size:1rem; width:20px; text-align:center; }
.footer-contact a { color:rgba(255,255,255,0.6); }
.footer-contact a:hover { color:var(--accent); }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.08); padding:20px 0; text-align:center; }
.footer-bottom p { font-size:0.9rem; color:rgba(255,255,255,0.4); }

/* ========== WHATSAPP FLOAT ========== */
.whatsapp-float {
    position:fixed; bottom:30px; left:30px; width:60px; height:60px; background:#25D366;
    border-radius:50%; display:flex; align-items:center; justify-content:center; color:var(--white);
    font-size:1.8rem; z-index:999; transition:var(--transition); box-shadow:0 4px 20px rgba(37,211,102,0.4);
}
.whatsapp-float:hover { transform:scale(1.1); box-shadow:0 6px 30px rgba(37,211,102,0.6); }
.whatsapp-pulse { position:absolute; width:100%; height:100%; border-radius:50%; background:#25D366; animation:whatsappPulse 2s ease-out infinite; }
@keyframes whatsappPulse { 0%{transform:scale(1);opacity:0.5} 100%{transform:scale(1.6);opacity:0} }
.whatsapp-tooltip { position:absolute; right:70px; background:var(--dark); color:var(--white); padding:8px 16px; border-radius:var(--radius-sm); font-size:0.85rem; font-weight:600; white-space:nowrap; opacity:0; visibility:hidden; transition:var(--transition); pointer-events:none; }
.whatsapp-float:hover .whatsapp-tooltip { opacity:1; visibility:visible; }

/* ========== BACK TO TOP ========== */
.back-to-top {
    position:fixed; bottom:30px; right:30px; width:48px; height:48px;
    background:var(--gradient-secondary); border-radius:50%; display:flex; align-items:center;
    justify-content:center; color:var(--white); font-size:1.1rem; z-index:998;
    opacity:0; visibility:hidden; transform:translateY(20px); transition:var(--transition); box-shadow:var(--shadow-glow);
}
.back-to-top.visible { opacity:1; visibility:visible; transform:translateY(0); }
.back-to-top:hover { transform:translateY(-5px); }

/* ========== ANIMATIONS ========== */
.reveal-up, .reveal-left, .reveal-right { opacity:0; transition:opacity 0.8s ease, transform 0.8s ease; }
.reveal-up { transform:translateY(40px); }
.reveal-left { transform:translateX(-40px); }
.reveal-right { transform:translateX(40px); }
.reveal-up.revealed, .reveal-left.revealed, .reveal-right.revealed { opacity:1; transform:translate(0,0); }

/* ========== RESPONSIVE ========== */
@media(max-width:1024px) {
    .about-grid { grid-template-columns:1fr; gap:40px; }
    .about-images { max-width:500px; margin:0 auto; }
    .footer-grid { grid-template-columns:1fr 1fr; gap:30px; }
    .stats-grid { grid-template-columns:repeat(2,1fr); }
    .features-grid { grid-template-columns:repeat(2,1fr); }
    .testimonials-slider { grid-template-columns:1fr 1fr; }
}

@media(max-width:768px) {
    .section { padding:70px 0; }
    .nav { position:fixed; top:0; right:-100%; width:300px; height:100vh; background:rgba(5,13,26,0.98); backdrop-filter:blur(20px); padding:100px 30px 40px; transition:var(--transition); z-index:1000; border-left:1px solid rgba(30,136,229,0.1); }
    .nav.active { right:0; }
    .nav-list { flex-direction:column; gap:4px; }
    .nav-link { width:100%; padding:12px 20px; font-size:1.1rem; }
    .menu-toggle { display:flex; }
    .header-cta span { display:none; }
    .logo-text { display:none; }
    .header-cta { width:44px; height:44px; padding:0; justify-content:center; border-radius:50%; }
    .hero-stats { gap:24px; }
    .hero-stat-number { font-size:2rem; }
    .projects-grid { grid-template-columns:1fr 1fr; }
    .contact-grid { grid-template-columns:1fr; }
    .features-grid { grid-template-columns:1fr; }
    .testimonials-slider { grid-template-columns:1fr; }
    .footer-grid { grid-template-columns:1fr; text-align:center; }
    .footer-col h3::after { right:50%; transform:translateX(50%); }
    .footer-logo { justify-content:center; }
    .footer-contact li { justify-content:center; }
}

@media(max-width:480px) {
    .section { padding:50px 0; }
    .container { padding:0 16px; }
    .hero { padding:100px 0 60px; }
    .hero-title { font-size:2rem; }
    .hero-buttons { flex-direction:column; width:100%; }
    .hero-buttons .btn { width:100%; justify-content:center; }
    .hero-stats { flex-direction:column; gap:16px; }
    .hero-stat-divider { width:40px; height:1px; }
    .projects-grid { grid-template-columns:1fr; }
    .services-grid { grid-template-columns:1fr; }
    .stats-grid { grid-template-columns:1fr 1fr; gap:16px; }
    .stat-card { padding:24px 16px; }
    .stat-number { font-size:2rem; }
    .filter-btn { padding:8px 18px; font-size:0.85rem; }
    .contact-form { padding:24px; }
    .about-visual { height:350px; }
    .about-img-float { position:relative; bottom:auto; left:auto; margin-top:-20px; margin-right:20px; }
    .cta-buttons { flex-direction:column; }
    .cta-buttons .btn { width:100%; justify-content:center; }
}

/* ========== LIGHTBOX ========== */
.lightbox {
    position:fixed; inset:0; background:rgba(0,0,0,0.95); z-index:100000;
    display:flex; align-items:center; justify-content:center;
    opacity:0; visibility:hidden; transition:var(--transition);
}
.lightbox.active { opacity:1; visibility:visible; }

.lightbox-content { max-width:90vw; max-height:85vh; position:relative; }
.lightbox-content img {
    max-width:90vw; max-height:80vh; object-fit:contain; border-radius:var(--radius-md);
    box-shadow:0 0 60px rgba(0,0,0,0.5);
}
.lightbox-caption {
    text-align:center; color:rgba(255,255,255,0.8); font-size:1rem; margin-top:16px; font-weight:500;
}

.lightbox-close, .lightbox-prev, .lightbox-next {
    position:absolute; z-index:10; color:var(--white); font-size:1.5rem;
    width:50px; height:50px; display:flex; align-items:center; justify-content:center;
    background:rgba(255,255,255,0.1); border:none; border-radius:50%; cursor:pointer;
    transition:var(--transition); backdrop-filter:blur(10px);
}
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover {
    background:rgba(30,136,229,0.5); transform:scale(1.1);
}
.lightbox-close { top:20px; left:20px; }
.lightbox-prev { right:20px; top:50%; transform:translateY(-50%); }
.lightbox-next { left:20px; top:50%; transform:translateY(-50%); }

::-webkit-scrollbar { width:8px; }
::-webkit-scrollbar-track { background:var(--dark); }
::-webkit-scrollbar-thumb { background:var(--secondary); border-radius:4px; }
::-webkit-scrollbar-thumb:hover { background:var(--accent); }
::selection { background:rgba(30,136,229,0.3); color:var(--white); }