/* =========================================
   1. ROOT VARIABLES & GLOBAL STYLES
   ========================================= */
:root {
    --primary-blue: #0d6efd;
    --primary-yellow: #ffc107;
    --dark-accent: #212529;
    --glass-bg: rgba(255, 255, 255, 0.1);
}

body { 
    font-family: 'Segoe UI', Roboto, sans-serif; 
    scroll-behavior: smooth; 
    overflow-x: hidden;
}

/* =========================================
   2. NAVIGATION STYLES
   ========================================= */
.navbar-brand img {
    filter: brightness(0) invert(1); 
    transition: transform 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.1);
}

.navbar-toggler, 
.navbar-toggler:focus, 
.navbar-toggler:active {
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
}

/* =========================================
   3. HERO SECTION (Main Header)
   ========================================= */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    background: linear-gradient(135deg, rgba(0,0,0,0.9) 0%, rgba(20,20,20,0.8) 100%), 
                url('https://images.unsplash.com/photo-1519389950473-47ba0277781c?auto=format&fit=crop&w=1350&q=80');
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    clip-path: polygon(0 0, 100% 0, 100% 90%, 0% 100%);
    overflow: hidden;
}

/* Floating Shapes Background */
.shape-1, .shape-2 {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(13, 110, 253, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    animation: float 10s infinite alternate;
}
.shape-1 { top: -100px; left: -100px; }
.shape-2 { bottom: -100px; right: -100px; animation-delay: 2s; }

@keyframes float {
    from { transform: translate(0, 0); }
    to { transform: translate(50px, 50px); }
}

/* Hero Typography & Buttons */
.tracking-widest { letter-spacing: 4px; }

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(13, 110, 253, 0.6) !important;
    transform: translateY(-3px);
    transition: 0.3s;
}

.glass-btn {
    background: var(--glass-bg);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    transition: 0.3s;
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* =========================================
   4. SERVICES & CARDS
   ========================================= */
.service-card {
    border: none;
    border-radius: 15px;
    background: #fff;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: all 0.4s ease;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(13, 110, 253, 0.15);
    border-bottom: 4px solid var(--primary-blue);
}

.icon-box {
    width: 70px;
    height: 70px;
    background: rgba(13, 110, 253, 0.1);
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-bottom: 20px;
    font-size: 1.8rem;
}

/* =========================================
   5. ACHIEVEMENTS & STATS
   ========================================= */
.stat-card {
    background: var(--dark-accent);
    color: white;
    padding: 40px 20px;
    border-radius: 12px;
    transition: 0.3s;
    border: 1px solid rgba(255,255,255,0.05);
}

.stat-card:hover {
    background: #2c3034;
    transform: scale(1.05);
}

/* =========================================
   6. FORMS & CONTACT
   ========================================= */
.form-control:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.15);
}

/* =========================================
   7. ANIMATIONS
   ========================================= */
.fade-in-up { animation: fadeInUp 0.8s ease forwards; }
.fade-in-up-delay { animation: fadeInUp 0.8s ease 0.3s forwards; opacity: 0; }
.fade-in-up-delay-2 { animation: fadeInUp 0.8s ease 0.6s forwards; opacity: 0; }
.scale-in { animation: scaleIn 1s ease forwards; }

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

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

/* =========================================
   8. RESPONSIVE QUERIES
   ========================================= */

/* Desktop & Tablets */
@media (max-width: 991.98px) {
    .navbar-nav .nav-item {
        width: 100%;
        padding: 8px 0;
    }
    .navbar-collapse {
        margin-top: 15px;
        padding-bottom: 20px;
    }
}

/* Small Tablets & Large Phones */
@media (max-width: 768px) {
    .hero-section { 
        min-height: 80vh; 
        clip-path: none;
        padding: 100px 0;
    }
    .display-2 { font-size: 2.8rem; }
}

/* Phones */
@media (max-width: 575.98px) {
    .hero-section h1.display-3 {
        font-size: 2.2rem;
        margin-bottom: 20px !important;
    }
    .hero-section .btn-lg {
        padding: 12px 24px !important;
        font-size: 0.95rem !important;
        width: 100%; /* Mobile par full width buttons zyada ache lagte hain */
    }
    .hero-section .d-flex {
        flex-direction: column;
        align-items: center;
    }
}