/* --- Custom Styles for Premium Feel --- */

:root {
    /* Define original color gradients for reuse */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-hero-light: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-hero-dark: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    overflow-x: hidden; /* Important for parallax animation */
}

/* --- Header Scroll Effect --- */
.navbar {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.navbar:not(.scrolled) {
    background: transparent;
}

.navbar.scrolled {
    background: rgba(var(--bs-body-bg-rgb), 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--bs-shadow-sm);
    padding-top: 1rem;
    padding-bottom: 1rem;
}

/* Nav Link Colors */
.navbar:not(.scrolled) .navbar-brand,
.navbar:not(.scrolled) .nav-link {
    color: white;
}
.navbar:not(.scrolled) .nav-link:hover {
    color: rgba(255, 255, 255, 0.8);
}
.navbar:not(.scrolled) .theme-toggle {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

[data-bs-theme="light"] .navbar.scrolled .navbar-brand,
[data-bs-theme="light"] .navbar.scrolled .nav-link {
    color: var(--bs-nav-link-color);
}
[data-bs-theme="dark"] .navbar.scrolled .navbar-brand,
[data-bs-theme="dark"] .navbar.scrolled .nav-link {
    color: var(--bs-nav-link-color);
}


.navbar:not(.scrolled) .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.2); 
}

.navbar:not(.scrolled) .navbar-toggler-icon {
    
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='white' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}


/* --- Hero Section --- */
.hero-gradient {
    background: var(--gradient-hero-light);
    color: white;
    padding: 200px 0 120px;
}

[data-bs-theme="dark"] .hero-gradient {
    background: var(--gradient-hero-dark);
}

/* Pulsing animations from original */
.hero-gradient::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 8s ease-in-out infinite;
}

.hero-gradient::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 10s ease-in-out infinite reverse;
}

@keyframes pulse {
    0%, 100% { transform: scale(1) translateY(0); opacity: 1; }
    50% { transform: scale(1.1) translateY(-20px); opacity: 0.8; }
}

/* Floating cards from original */
.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: float 6s ease-in-out infinite;
}
.floating-card:nth-child(1) { top: 0; right: 0; width: 280px; animation-delay: 0s; }
.floating-card:nth-child(2) { bottom: 50px; right: 100px; width: 250px; animation-delay: 1s; }
.floating-card:nth-child(3) { top: 120px; left: 50px; width: 220px; animation-delay: 2s; }

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* --- Custom Buttons & Badges --- */
.btn-primary-gradient {
    background: var(--gradient-primary);
    border: none;
    color: white;
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.4);
}
.btn-primary-gradient:hover {
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(99, 102, 241, 0.5);
}
.btn-glass-light {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}
.btn-glass-light:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    color: white;
}

.section-label {
    background: linear-gradient(135deg, #ede9fe 0%, #ddd6fe 100%);
    color: #6366f1;
}
[data-bs-theme="dark"] .section-label {
    background: rgba(99, 102, 241, 0.2);
    color: #a5b4fc;
}

/* --- Service Card Icon --- */
.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #ede9fe 0%, #ddd6fe 100%);
    transition: all 0.4s;
}
[data-bs-theme="dark"] .service-icon {
    background: rgba(99, 102, 241, 0.2);
}
.service-card:hover .service-icon {
    background: var(--gradient-primary);
    transform: scale(1.1) rotate(5deg);
}

/* --- Featured App List --- */
.app-features li {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative; 
    padding-top: 0.8rem;
    padding-bottom: 0.8rem;
    padding-left: 1.5rem; 
    
}
.app-features li::before {
    content: '✓';
    
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
}

/* --- Hover Effects --- */
.transition-all {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.hover-shadow-lg:hover {
    box-shadow: var(--bs-box-shadow-lg) !important;
}
.hover-translate-y-n1:hover {
    transform: translateY(-8px);
}

/* --- Theme Toggle Switch --- */
.theme-toggle {
    width: 50px;
    height: 26px;
    background: var(--bs-tertiary-bg);
    border-radius: 50px;
    position: relative;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid var(--bs-border-color);
}

/* Adjust toggle background in scrolled light mode */
[data-bs-theme="light"] .navbar.scrolled .theme-toggle {
    background: var(--bs-tertiary-bg);
    border-color: var(--bs-border-color);
}

.theme-toggle-slider {
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    position: absolute;
    top: 1px;
    left: 2px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: black;
}
[data-bs-theme="dark"] .theme-toggle-slider {
    left: 26px;
    background: #6366f1;
    color: white;
}

/* --- Custom Contact Form --- */
.form-control-glass {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
}
.form-control-glass::placeholder {
    color: #94a3b8;
}
.form-control-glass:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.12);
    border-color: #6366f1;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.3);
    color: white;
}

/* --- Project Mockup Image Style --- */
.app-mockup-image {
    max-width: 450px;
    height: auto;
}


/* ==============================================
   Mobile Optimization Styles
   ============================================== */

/* --- 1. Mobile Menu Fix (for tablets and phones) --- */
@media (max-width: 991.98px) {
    
    
    .navbar:not(.scrolled) .navbar-collapse {
        background: var(--bs-body-bg); 
        padding: 1rem;
        margin-top: 1rem;
        border-radius: 0.5rem;
        box-shadow: var(--bs-box-shadow);
    }

    
    .navbar:not(.scrolled) .navbar-nav .nav-link {
        color: var(--bs-nav-link-color);
    }
    .navbar:not(.scrolled) .navbar-nav .nav-link:hover {
        color: var(--bs-nav-link-hover-color);
    }
    
    
    .navbar:not(.scrolled) .navbar-nav .theme-toggle {
        background: var(--bs-tertiary-bg);
        border: 2px solid var(--bs-border-color);
    }
}

/* --- 2. General Mobile Fixes (for phones) --- */
@media (max-width: 767.98px) {
    
    /* Home Page Hero Section */
    .hero-gradient {
        padding-top: 120px;
        padding-bottom: 60px;
    }

    
    .display-2 {
        font-size: 2rem; 
    }
    .display-4 {
        font-size: 1rem; 
    }
    .display-5 {
        font-size: 0.75rem; 
    }

    
    .floating-card {
        display: none;
    }

    /* Home Page Project Section */
    #projects .display-5 {
        font-size: 1.25rem; 
    }
    #projects .lead {
        font-size: 1.1rem;
    }
    #projects .app-mockup-image {
        max-width: 300px; 
        height: auto;
    }
}