/* =====================================================
   DEPARTMENT PAGES - UNIFIED STYLESHEET (Enhanced Premium Theme)
   Suhas Institute of Technology
   Professional College Theme: Navy Blue (#0A2540), White (#FFFFFF), Light Gold (#D4AF37)
   ===================================================== */

/* CSS Variables - Updated Premium Theme */
:root {
    /* Primary Colors - Navy Blue Theme */
    --primary: #0A2540;
    --primary-dark: #061829;
    --primary-light: #143a5e;
    --primary-medium: #0d3251;
    
    /* Accent Colors - Light Gold */
    --accent: #D4AF37;
    --accent-light: #e5c565;
    --accent-dark: #b8962e;
    
    /* Additional Colors */
    --blue: #0077ff;
    --blue-light: #3395ff;
    --text: #333333;
    --text-light: #666666;
    --white: #ffffff;
    --bg-light: #f4f6f9;
    
    /* Shadows - Enhanced for depth */
    --shadow-xs: 0 1px 3px rgba(10, 37, 64, 0.08);
    --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.1);
    --shadow-md: 0 8px 25px rgba(10, 37, 64, 0.12);
    --shadow-lg: 0 15px 40px rgba(10, 37, 64, 0.15);
    --shadow-xl: 0 20px 50px rgba(10, 37, 64, 0.18);
    
    /* Gold glow effect */
    --glow-gold: 0 0 20px rgba(212, 175, 55, 0.3);
    
    /* Transitions - Smooth 0.3s-0.5s */
    --transition-fast: all 0.2s ease;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Reset */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Noto Serif','Poppins',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--white);color:var(--text);line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;transition:var(--transition)}
ul{list-style:none}

/* Breadcrumb */
.breadcrumb-nav{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);padding:14px 0;border-bottom:2px solid var(--accent)}
.breadcrumb-container{max-width:1200px;margin:0 auto;padding:0 25px;display:flex;align-items:center;gap:10px;font-size:14px;flex-wrap:wrap}
.breadcrumb-container a{color:rgba(255,255,255,0.85);transition:var(--transition)}
.breadcrumb-container a:hover{color:var(--accent)}
.breadcrumb-container .separator{color:rgba(255,255,255,0.5)}
.breadcrumb-container .current{color:var(--white);font-weight:600}

/* Hero Section */
.dept-hero{height:320px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 50%,var(--primary) 100%);position:relative;display:flex;align-items:center;justify-content:center;border-bottom:4px solid var(--accent)}
.hero-overlay{text-align:center;color:var(--white);padding:25px;position:relative;z-index:1}
.hero-overlay::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at center,rgba(212,175,55,0.15) 0%,transparent 70%);z-index:-1}
.hero-overlay h1{font-size:38px;margin-bottom:12px;font-weight:700;letter-spacing:0.5px;text-shadow:0 2px 10px rgba(0,0,0,0.2)}
.hero-overlay p{font-size:18px;opacity:0.95;font-weight:400}

/* Section Styles */
.dept-section{padding:70px 25px;background:var(--white)}
.section-container{max-width:1200px;margin:0 auto;padding:0 5px}
.section-title{text-align:center;font-size:32px;color:var(--primary);margin-bottom:50px;font-weight:700;position:relative;display:inline-block;padding-bottom:18px}
.section-title::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:70px;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-light));border-radius:2px}
.bg-light{background:linear-gradient(135deg,#f4f6f9 0%,#eef2f7 100%)}

/* About Section */
.about-content{background:var(--white);padding:35px;border-radius:18px;box-shadow:var(--shadow-lg);border:1px solid rgba(10,37,64,0.08)}
.about-box{display:flex;gap:25px;flex-wrap:wrap;justify-content:center;margin-bottom:35px}
.about-item{display:flex;align-items:center;gap:18px;background:linear-gradient(135deg,#f8fafc 0%,#f0f4f8 100%);padding:24px;border-radius:14px;box-shadow:var(--shadow-sm);flex:1;min-width:260px;transition:var(--transition-smooth);border:1px solid transparent}
.about-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--accent)}
.about-item i{font-size:36px;color:var(--primary);transition:var(--transition)}
.about-item:hover i{color:var(--accent)}
.about-item h4{color:var(--primary);margin-bottom:6px;font-size:17px;font-weight:700}
.about-item p{font-size:14px;color:var(--text-light)}
.about-description h4{color:var(--primary);margin:25px 0 12px;font-size:20px;font-weight:700}
.about-description h4:first-child{margin-top:0}
.about-description p{line-height:1.8;color:var(--text-light);margin-bottom:18px;font-size:15px}

/* Department Info Cards */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:25px}
.info-card{background:var(--white);padding:30px;border-radius:16px;box-shadow:var(--shadow-md);transition:var(--transition-smooth);border:1px solid rgba(10,37,64,0.06);position:relative;overflow:hidden}
.info-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-light));transform:scaleX(0);transition:transform var(--transition)}
.info-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--accent)}
.info-card:hover::before{transform:scaleX(1)}
.info-card h3{color:var(--primary);font-size:20px;margin-bottom:18px;display:flex;align-items:center;gap:12px;font-weight:700}
.info-card h3 i{color:var(--accent);font-size:22px}
.info-list{padding-left:0}
.info-list li{list-style:none;padding:12px 0;border-bottom:1px solid rgba(10,37,64,0.08);color:var(--text-light);font-size:15px;display:flex;align-items:flex-start;gap:12px;transition:var(--transition)}
.info-list li:last-child{border-bottom:none}
.info-list li:hover{padding-left:8px;color:var(--primary)}
.info-list li i{color:var(--accent);margin-top:3px;flex-shrink:0}

/* Lab Grid */
.lab-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:25px}
.lab-card{background:var(--white);padding:28px;border-radius:16px;box-shadow:var(--shadow-md);transition:var(--transition-smooth);border:1px solid rgba(10,37,64,0.06);position:relative;overflow:hidden}
.lab-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-light));transform:scaleX(0);transition:transform var(--transition)}
.lab-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--accent)}
.lab-card:hover::before{transform:scaleX(1)}
.lab-card h3{color:var(--primary);margin-bottom:18px;font-size:20px;font-weight:700;display:flex;align-items:center;gap:12px}
.lab-card h3 i{color:var(--accent);font-size:24px}
.lab-card ul{padding-left:0;margin:0}
.lab-card li{list-style:none;padding:10px 0;position:relative;padding-left:28px;color:var(--text-light);font-size:15px;border-bottom:1px solid rgba(10,37,64,0.05)}
.lab-card li:last-child{border:none}
.lab-card li::before{content:'\f00c';font-family:'Font Awesome 6 Free';font-weight:900;position:absolute;left:0;color:var(--accent);font-size:14px}

/* Tools Grid */
.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:25px}
.tools-card{background:var(--white);padding:28px;border-radius:16px;box-shadow:var(--shadow-md);transition:var(--transition-smooth);border:1px solid rgba(10,37,64,0.06);position:relative;overflow:hidden}
.tools-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-light));transform:scaleX(0);transition:transform var(--transition)}
.tools-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--accent)}
.tools-card:hover::before{transform:scaleX(1)}
.tools-card h3{color:var(--primary);margin-bottom:18px;font-size:20px;font-weight:700;display:flex;align-items:center;gap:12px}
.tools-card h3 i{color:var(--accent);font-size:24px}
.tools-card ul{padding-left:0;margin:0}
.tools-card li{list-style:none;padding:10px 0;position:relative;padding-left:28px;color:var(--text-light);font-size:15px;border-bottom:1px solid rgba(10,37,64,0.05)}
.tools-card li:last-child{border:none}
.tools-card li::before{content:'\f00c';font-family:'Font Awesome 6 Free';font-weight:900;position:absolute;left:0;color:var(--accent);font-size:14px}

/* Stats Grid */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:25px}
.stat-card{background:var(--white);padding:35px 25px;border-radius:16px;box-shadow:var(--shadow-md);text-align:center;transition:var(--transition-smooth);border:1px solid rgba(10,37,64,0.06);position:relative;overflow:hidden}
.stat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-light))}
.stat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--accent)}
.stat-card i{font-size:44px;color:var(--accent);margin-bottom:18px;transition:var(--transition)}
.stat-card:hover i{transform:scale(1.1)}
.stat-number{font-size:42px;font-weight:700;color:var(--primary);margin-bottom:12px}
.stat-label{font-size:15px;color:var(--text-light);font-weight:500}

/* Placement Content */
.placement-content{background:var(--white);padding:35px;border-radius:16px;box-shadow:var(--shadow-lg);border:1px solid rgba(10,37,64,0.08)}
.placement-content > p{line-height:1.8;color:var(--text-light);margin-bottom:25px;font-size:15px}
.placement-features{display:flex;gap:15px;flex-wrap:wrap;justify-content:center}
.place-item{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:var(--white);padding:14px 24px;border-radius:30px;display:flex;align-items:center;gap:10px;font-size:14px;font-weight:500;transition:var(--transition-smooth);border:1px solid transparent}
.place-item:hover{background:linear-gradient(135deg,var(--accent),var(--accent-light));color:var(--primary);transform:translateY(-3px);box-shadow:var(--glow-gold);border-color:var(--accent-dark)}
.place-item i{color:var(--accent)}
.place-item:hover i{color:var(--primary)}

/* Activities Grid */
.activities-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:20px}
.activity-item{background:var(--white);padding:30px 20px;border-radius:16px;box-shadow:var(--shadow-md);text-align:center;transition:var(--transition-smooth);border:1px solid rgba(10,37,64,0.06)}
.activity-item:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--accent)}
.activity-item i{font-size:36px;color:var(--primary);margin-bottom:14px;transition:var(--transition)}
.activity-item:hover i{color:var(--accent)}
.activity-item h4{color:var(--text);font-size:15px;font-weight:600}

/* Compliance Grid */
.compliance-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.compliance-item{background:var(--white);padding:25px 20px;border-radius:14px;box-shadow:var(--shadow-md);text-align:center;transition:var(--transition-smooth);border:1px solid rgba(10,37,64,0.06)}
.compliance-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--accent)}
.compliance-item i{font-size:32px;color:var(--accent);margin-bottom:14px}
.compliance-item p{color:var(--text-light);font-size:14px;margin:0;font-weight:500}

/* Main Layout */
.dept-main-layout{display:grid;grid-template-columns:minmax(350px,1fr) minmax(400px,1.25fr);gap:40px;padding:50px 5%;background:linear-gradient(135deg,#f4f6f9 0%,#eef2f7 100%);align-items:start}
.left-panel,.right-panel{min-width:0}
.dept-main-layout h2{color:var(--primary);margin-bottom:25px;font-size:26px;font-weight:700;position:relative;padding-bottom:15px}
.dept-main-layout h2::after{content:'';position:absolute;bottom:0;left:0;width:50px;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-light));border-radius:2px}

/* HOD Section */
.hod-photo{display:flex;justify-content:center;margin-bottom:20px}
.hod-photo img{width:min(280px,100%);aspect-ratio:4/5;object-fit:cover;object-position:center top;border-radius:16px;border:4px solid var(--accent);box-shadow:var(--shadow-lg);transition:var(--transition-smooth)}
.hod-photo img:hover{border-color:var(--primary);transform:scale(1.02)}
.hod-content{background:var(--white);padding:30px;border-radius:16px;box-shadow:var(--shadow-lg);border:1px solid rgba(10,37,64,0.08)}
.hod-content p{line-height:1.8;color:var(--text-light);margin-bottom:15px;font-size:15px}
.hod-name{color:var(--primary);font-weight:700;margin-bottom:6px;font-size:18px}
.hod-designation{color:var(--text-light);font-size:14px}

/* Faculty Grid */
.faculty-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:25px}
.faculty-card{background:var(--white);padding:25px 20px;border-radius:16px;box-shadow:var(--shadow-md);text-align:center;transition:var(--transition-smooth);display:flex;flex-direction:column;align-items:center;justify-content:flex-start;min-height:260px;border:1px solid rgba(10,37,64,0.06)}
.faculty-card:hover{transform:translateY(-10px);box-shadow:var(--shadow-xl);border-color:var(--accent)}
.faculty-card img{width:120px;height:120px;object-fit:cover;object-position:center top;border-radius:50%;margin:0 auto 18px;border:4px solid var(--primary);box-shadow:var(--shadow-md);transition:var(--transition)}
.faculty-card:hover img{border-color:var(--accent);box-shadow:var(--glow-gold)}
.faculty-card h4{color:var(--primary);font-size:16px;margin-bottom:6px;line-height:1.35;font-weight:700}
.faculty-designation{color:var(--text-light);font-size:13px}

/* Scroll Reveal */
.reveal-up{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease;transition-delay:var(--reveal-delay,0ms)}
.reveal-up.in-view{opacity:1;transform:none}

/* Footer */
footer{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 100%);color:#e6e6e6;text-align:center;padding:30px 20px;font-size:14px;border-top:3px solid var(--accent)}
.footer-content{max-width:1200px;margin:0 auto}
footer p{margin-bottom:12px;opacity:0.9}
.dev-popup{font-size:12px!important;opacity:0.7!important;margin-bottom:15px!important}
.social-icons{display:flex;justify-content:center;gap:18px;margin-top:20px}
.social-icons a{width:44px;height:44px;display:flex;justify-content:center;align-items:center;border-radius:50%;font-size:18px;color:var(--white);text-decoration:none;transition:var(--transition-smooth);background:rgba(255,255,255,0.1)}
.social-icons a:first-child{background:linear-gradient(45deg,#f09433,#dc2743,#cc2366,#bc1888)}
.social-icons a:nth-child(2){background:#1877f2}
.social-icons a:nth-child(3){background:#ff0000}
.social-icons a:hover{transform:translateY(-4px) scale(1.1);box-shadow:var(--shadow-lg)}

/* Responsive */
@media (max-width: 992px) {
    .dept-hero{height:280px}
    .hero-overlay h1{font-size:30px}
    .hero-overlay p{font-size:16px}
    .about-box{flex-direction:column}
    .about-item{min-width:100%}
    .info-grid,.lab-grid,.tools-grid,.stats-grid,.faculty-grid{grid-template-columns:repeat(2,1fr)}
    .dept-main-layout{grid-template-columns:1fr;padding:40px 5%}
    .section-title{font-size:28px}
}

@media (max-width: 768px) {
    .dept-section{padding:50px 20px}
    .section-title{font-size:26px;margin-bottom:35px}
    .dept-hero{height:240px}
    .hero-overlay h1{font-size:26px}
    .hero-overlay p{font-size:15px}
    .info-grid,.lab-grid,.tools-grid,.stats-grid,.faculty-grid{grid-template-columns:1fr}
    .about-content{padding:25px}
    .about-box{gap:15px}
    .about-item{padding:20px}
    .hod-photo img{width:140px;height:180px;margin:0 auto}
    .dept-main-layout{padding:30px 5%;gap:30px}
    .hod-content,.placement-content{padding:25px}
    .stat-card,.lab-card,.tools-card{padding:24px}
    .faculty-card{min-height:240px}
    .faculty-card img{width:100px;height:100px}
}

@media (max-width: 576px) {
    .hero-overlay h1{font-size:22px}
    .hero-overlay p{font-size:14px}
    .breadcrumb-container{font-size:13px}
    .section-title{font-size:24px;margin-bottom:30px;padding-bottom:12px}
    .dept-hero{height:200px}
    .about-item{flex-direction:column;text-align:center;gap:12px}
    .about-item i{font-size:28px}
    .stats-grid{grid-template-columns:1fr 1fr}
    .stat-card{padding:20px 15px}
    .stat-number{font-size:32px}
    .place-item{padding:12px 18px;font-size:13px}
    .activity-item{padding:24px 16px}
    .activity-item i{font-size:28px}
}

/* Animation Enhancements */
@media (prefers-reduced-motion: no-preference) {
    .hero-overlay h1{animation:heroFloat 3s ease-in-out infinite alternate}
}

@keyframes heroFloat {
    from { transform: translateY(0); }
    to { transform: translateY(-5px); }
}