/* ========================================
   CUSTOM CSS FOR PORTFOLIO WEBSITE
   ======================================== */

/* === GENERAL STYLES === */
:root {
    --primary-color: #004A9F;
    --primary-hover: #003580;
    --primary-light: #66A3FF;
    --secondary-bg: #F7F8FA;
    --border-color: #dee2e6;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #212529;
    background-color: var(--secondary-bg);
}

/* === HEADER & NAVIGATION === */
#header {
    box-shadow: var(--shadow-sm);
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color) !important;
    text-decoration: none;
    transition: var(--transition);
}

.navbar-brand:hover {
    opacity: 0.7;
}

.nav-link {
    color: #6c757d !important;
    font-weight: 500;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: var(--transition);
    border: none;
    background: transparent;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color) !important;
    background-color: rgba(0, 74, 159, 0.1);
}

/* === PAGE TRANSITIONS === */
.page-section {
    display: none;
    animation: fadeIn 0.4s ease-in-out;
}

.page-section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === BUTTONS === */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: #dee2e6;
    font-weight: 500;
    transition: var(--transition);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* === CARDS === */
.card {
    border-radius: 0.75rem;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl) !important;
}

.hover-lift {
    transition: var(--transition);
}

.hover-lift:hover {
    transform: translateY(-8px);
}

/* === LAPTOP MOCKUP === */
.laptop-mockup {
    max-width: 750px;
    margin: 0 auto;
}

.laptop-mockup-large {
    max-width: 1000px !important;
}

@media (min-width: 1400px) {
    .laptop-mockup-large {
        max-width: 1100px !important;
    }
}

.laptop-screen {
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 3px solid #2d3748;
    background: #ffffff;
    aspect-ratio: 16 / 10;
    position: relative;
}

.laptop-screen > img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    position: relative;
    z-index: 0;
    padding: 10px;
}

/* Carousel in laptop screen */
.laptop-screen .carousel {
    height: 100%;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    background: #ffffff;
}

.laptop-screen .carousel-inner {
    height: 100%;
    width: 100%;
    position: relative;
}

.laptop-screen .carousel-item {
    height: 100%;
    width: 100%;
    background-color: #ffffff;
    padding: 10px;
    display: none;
    position: absolute;
    top: 0;
    left: 0;
}

.laptop-screen .carousel-item.active,
.laptop-screen .carousel-item-next,
.laptop-screen .carousel-item-prev {
    display: block !important;
}

.laptop-screen .carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
    margin: 0 auto;
}

/* Carousel controls styling */
.laptop-screen .carousel-control-prev,
.laptop-screen .carousel-control-next {
    width: 15%;
    opacity: 0.8;
    z-index: 10;
}

.laptop-screen .carousel-control-prev:hover,
.laptop-screen .carousel-control-next:hover {
    opacity: 1;
}

.laptop-screen .carousel-control-prev-icon,
.laptop-screen .carousel-control-next-icon {
    filter: invert(0) drop-shadow(0 0 2px rgba(0,0,0,0.5));
}

.laptop-base {
    position: relative;
    height: 12px;
    background: linear-gradient(to bottom, #2d3748, #1a202c);
    border-radius: 0 0 0.5rem 0.5rem;
    margin-top: -2px;
}

.laptop-base::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: #4a5568;
    border-radius: 3px 3px 0 0;
}

/* === PROFILE PAGE === */
.profile-avatar {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    font-size: 4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 0 8px rgba(0, 74, 159, 0.2), var(--shadow-xl);
}

.badge-stat {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 0.9rem;
    color: #495057;
    transition: var(--transition);
}

.badge-stat:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

/* === GRADIENTS === */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), #0062CC) !important;
}

.bg-gradient-blue {
    background: linear-gradient(135deg, #3b82f6, #6366f1);
}

.bg-gradient-green {
    background: linear-gradient(135deg, #10b981, #14b8a6);
}

.bg-gradient-purple {
    background: linear-gradient(135deg, #a855f7, #ec4899);
}

.card-gradient {
    position: relative;
    overflow: hidden;
}

/* === ICON BOXES === */
.icon-box {
    width: 48px;
    height: 48px;
    border-radius: 0.5rem;
    background: rgba(0, 74, 159, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
    color: var(--primary-color);
    font-size: 1.25rem;
}

.card:hover .icon-box {
    background: var(--primary-color);
    color: white;
}

/* === TOOL BADGES === */
.tool-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 0.9rem;
    color: #495057;
    transition: var(--transition);
    cursor: default;
}

.tool-badge:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* === CV PAGE === */
.cv-preview {
    position: relative;
    aspect-ratio: 8.5 / 11;
    max-width: 600px;
    margin: 0 auto;
}

.cv-mockup {
    position: relative;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom right, #f8f9fa, white);
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 2rem;
    overflow: hidden;
}

.cv-content {
    position: relative;
    z-index: 1;
}

.cv-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

/* === BADGES === */
.badge {
    font-weight: 500;
    padding: 0.5rem 0.75rem;
}

/* === HOVER EFFECTS === */
.hover-primary {
    transition: var(--transition);
}

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

/* === UTILITIES === */
.text-primary {
    color: var(--primary-color) !important;
}

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

/* === RESPONSIVE === */
@media (max-width: 991px) {
    .sticky-top {
        position: relative !important;
        top: 0 !important;
    }
}

@media (max-width: 768px) {
    .laptop-mockup {
        max-width: 100%;
    }
    
    .profile-avatar {
        width: 150px;
        height: 150px;
        font-size: 3rem;
    }
    
    h1, .display-4 {
        font-size: 2rem;
    }
    
    .cv-mockup {
        padding: 1rem;
    }
}

/* === SMOOTH SCROLLING === */
html {
    scroll-behavior: smooth;
}

/* === LOADING ANIMATION === */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.placeholder {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* === ACCESSIBILITY === */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* === PRINT STYLES === */
@media print {
    .navbar, footer {
        display: none;
    }
    
    .page-section {
        display: block !important;
        page-break-after: always;
    }
}