/* =================================================
   PROFESSIONAL PORTFOLIO - STYLE SHEET
   Color Theme: Pink (#e91e63) - Modern & Professional
   Framework: Bootstrap 5.3.0
   ================================================= */

/* General Styles */
/* CSS Variables defined at root level for easy maintenance and consistency across site */
:root {
    --primary-color: #e91e63;  /* Pink accent color used throughout for branding */
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --light-bg: #f8f9fa;
}

/* Reset default browser margins and padding for consistent styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Body: Professional sans-serif font with good line height for readability */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Hero Section - Eye-catching landing area with pink gradient background */
/* Pink gradient creates strong visual hierarchy and draws visitor attention to main CTA buttons */
.hero-section {
    background: linear-gradient(135deg, #e91e63 0%, #c2185b 100%);
    padding: 100px 0 !important;
}

/* Large headline with slide-down animation for engaging first impression */
.hero-section h1 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 1rem;
    animation: slideInDown 0.8s ease-out;  /* Slides title down on page load */
}

/* Subtitle with staggered slide-up animation for visual depth and hierarchy */
.hero-section .lead {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 2rem;
    animation: slideInUp 0.8s ease-out 0.2s backwards;  /* Slides up with 0.2s delay for staggered effect */
}

/* Projects Section - Displays portfolio work in an organized grid layout */
.projects-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #212529;
    margin-bottom: 3rem;
}

/* Card styling: Clean, modern look with no borders and rounded corners for softer appearance */
.card {
    border: none;  /* Removed default border for modern flat design aesthetic */
    border-radius: 12px;  /* Rounded corners for approachable, modern look */
    transition: transform 0.3s ease, box-shadow 0.3s ease;  /* Smooth animation on hover */
}

/* Hover effect: Card lifts upward to indicate user can interact with it */
/* This improves user experience by providing visual feedback */
.card:hover {
    transform: translateY(-10px);  /* Lifts card 10px up on hover */
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15) !important;  /* Enhanced shadow for floating effect */
}

/* Project title colors maintain branding consistency throughout the site */
.card h5 {
    color: var(--primary-color);  /* Pink color for visual consistency */
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Skills Section */
.skills-section {
    background-color: #ffffff;
    padding: 60px 0 !important;
}

.skills-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #212529;
    margin-bottom: 3rem;
}

.skills-section h5 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.skills-section ul li {
    margin-bottom: 0.75rem;
    font-size: 1.05rem;
}

/* Resume Styles */
.resume-header {
    margin-top: 2rem;
}

.resume-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #212529;
}

.resume-header .text-muted {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.95rem;
}

.contact-info a:hover {
    text-decoration: underline;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #212529;
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin-bottom: 1.5rem;
}

.experience-item,
.education-item {
    padding-bottom: 2rem;
    border-bottom: 1px solid #e9ecef;
}

.experience-item:last-child,
.education-item:last-child {
    border-bottom: none;
}

.experience-item h5,
.education-item h5 {
    color: #212529;
    font-weight: 600;
}

.company-name,
.school-name {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.95rem;
}

.experience-item ul li,
.education-item li {
    margin-bottom: 0.5rem;
    color: #555;
}

.skill-category h6 {
    color: #212529;
    margin-bottom: 0.5rem;
}

/* About Page Styles */
.img-fluid.rounded-circle {
    border: 5px solid var(--primary-color);
    transition: transform 0.3s ease;
}

.img-fluid.rounded-circle:hover {
    transform: scale(1.05);
}

/* Footer */
footer {
    background-color: #212529;
    color: #fff;
    margin-top: 5rem;
}

footer a {
    color: #80a8e9;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: #fff;
}

/* =================================================
   ANIMATIONS: Smooth visual effects for user engagement
   ================================================= */

/* Slide down animation: Used for h1 titles on page entrance */
/* Creates polished, professional feel with smooth fade and movement */
@keyframes slideInDown {
    from {
        opacity: 0;  /* Starts invisible */
        transform: translateY(-30px);  /* Starts above final position */
    }
    to {
        opacity: 1;  /* Fades in to full visibility */
        transform: translateY(0);  /* Moves to final position */
    }
}

/* Slide up animation: Used for subtitle text with delayed start */
/* Staggered timing creates visual hierarchy and smooth entrance flow */
@keyframes slideInUp {
    from {
        opacity: 0;  /* Starts invisible */
        transform: translateY(30px);  /* Starts below final position */
    }
    to {
        opacity: 1;  /* Fades in to full visibility */
        transform: translateY(0);  /* Moves to final position */
    }
}

/* =================================================
   RESPONSIVE DESIGN: Adjusts layout for mobile devices
   ================================================= */

/* =================================================
   Z-INDEX / STACKING CONTEXT: Manage layering of elements
   ================================================= */

/* Dropdown menu: Ensure visibility above sticky sidebar */
.dropdown-menu {
    z-index: 1050 !important;  /* Higher than Bootstrap default navbar z-index (1030) */
}

/* =================================================
   RESPONSIVE DESIGN: Adjusts layout for mobile devices
   ================================================= */

/* Mobile breakpoint: Screens 768px and smaller */
/* Reduces font sizes for better readability on smaller screens */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2rem;  /* Reduced from 3.5rem */
    }

    .hero-section .lead {
        font-size: 1rem;  /* Reduced from 1.5rem */
    }

    .resume-header h1 {
        font-size: 1.8rem;  /* Reduced from 2.5rem */
    }

    .section-title {
        font-size: 1.4rem;  /* Reduced from 1.8rem */
    }
}