/* =====================================================
   PROFESSIONAL PORTFOLIO THEME
   Deep Blue / White / Teal - Modern Enterprise Design
   ===================================================== */

:root {
    /* Core Professional Palette */
    --primary: #0a192f;
    /* Deep Navy - Main background */
    --secondary: #112240;
    /* Lighter Navy - Cards/Sections */
    --accent: #64ffda;
    /* Teal - Single accent color */
    --accent-soft: rgba(100, 255, 218, 0.1);
    --light: #e6f1ff;
    /* Off-white for text */
    --text-primary: #ccd6f6;
    /* Main text color */
    --text-secondary: #8892b0;
    /* Muted text */
    --white: #ffffff;

    /* Borders & Glass */
    --border-color: rgba(100, 255, 218, 0.1);
    --card-bg: rgba(17, 34, 64, 0.7);
    --glass-bg: rgba(10, 25, 47, 0.85);

    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.4);
    --shadow-accent: 0 10px 30px rgba(100, 255, 218, 0.15);
}

/* =====================================================
   BASE STYLES
   ===================================================== */

* {
    box-sizing: border-box;
}

body {
    background-color: var(--primary);
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    overflow-x: hidden;
    line-height: 1.7;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--light);
    font-weight: 600;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--white);
}

/* =====================================================
   CUSTOM SCROLLBAR
   ===================================================== */

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--light);
}

/* =====================================================
   NAVIGATION
   ===================================================== */

.navbar {
    backdrop-filter: blur(15px);
    background: var(--glass-bg);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    padding: 0.75rem 0;
}

.navbar.scrolled {
    background: rgba(10, 25, 47, 0.95);
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--accent) !important;
    transition: all 0.3s ease;
}

.navbar-brand:hover {
    color: var(--white) !important;
}

.navbar-nav .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    margin: 0 8px;
    position: relative;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--accent) !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 100%;
}

.navbar-toggler {
    border: 1px solid var(--accent) !important;
    padding: 0.5rem;
}

.navbar-toggler svg {
    color: var(--accent) !important;
}

/* =====================================================
   HERO SECTION
   ===================================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-content {
    z-index: 2;
    padding: 2rem 0;
}

.hero-tagline {
    color: var(--accent);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    display: block;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    color: var(--light);
}

.hero-title .highlight {
    color: var(--accent);
}

.typewriter-container {
    height: 50px;
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.typewriter {
    font-size: clamp(1.1rem, 3vw, 1.4rem);
    font-weight: 500;
    color: var(--text-secondary);
    border-right: 2px solid var(--accent);
    padding-right: 5px;
    animation: blink 1s infinite;
}

@keyframes blink {

    0%,
    50% {
        border-color: var(--accent);
    }

    51%,
    100% {
        border-color: transparent;
    }
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    max-width: 550px;
}

.hero-credibility {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    padding: 0.75rem 1rem;
    background: var(--accent-soft);
    border-left: 3px solid var(--accent);
    border-radius: 0 4px 4px 0;
    display: inline-block;
}

.hero-credibility strong {
    color: var(--accent);
}

/* =====================================================
   PROFILE IMAGE
   ===================================================== */

.profile-container {
    position: relative;
    display: inline-block;
}

.profile-img {
    width: clamp(220px, 28vw, 320px);
    height: clamp(220px, 28vw, 320px);
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid var(--accent);
    box-shadow: var(--shadow-accent), var(--shadow-lg);
    transition: all 0.4s ease;
}

.profile-img:hover {
    transform: scale(1.02);
    box-shadow: 0 0 40px rgba(100, 255, 218, 0.3);
}

.profile-glow {
    position: absolute;
    top: -15px;
    left: -15px;
    right: -15px;
    bottom: -15px;
    background: var(--accent);
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.15;
    z-index: -1;
}

/* =====================================================
   BUTTONS
   ===================================================== */

.btn-primary-custom {
    background: var(--accent);
    border: none;
    color: var(--primary);
    font-weight: 600;
    padding: 14px 32px;
    border-radius: 4px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

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

.btn-outline-custom {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    font-weight: 600;
    padding: 12px 30px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.btn-outline-custom:hover {
    background: var(--accent-soft);
    color: var(--accent);
    transform: translateY(-2px);
}

/* Legacy button classes for compatibility */
.btn-cyber {
    background: var(--accent);
    border: none;
    color: var(--primary);
    font-weight: 600;
    padding: 14px 32px;
    border-radius: 4px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

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

.btn-outline-cyber {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    font-weight: 600;
    padding: 12px 30px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.btn-outline-cyber:hover {
    background: var(--accent-soft);
    color: var(--accent);
    transform: translateY(-2px);
}

/* =====================================================
   SECTION STYLES
   ===================================================== */

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.75rem;
    color: var(--light);
}

.section-title::before {
    content: '';
    display: inline-block;
    width: 30px;
    height: 3px;
    background: var(--accent);
    margin-right: 15px;
    vertical-align: middle;
}

.section-title::after {
    content: '';
    display: inline-block;
    width: 30px;
    height: 3px;
    background: var(--accent);
    margin-left: 15px;
    vertical-align: middle;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

/* =====================================================
   SKILLS SECTION
   ===================================================== */

.skills-category {
    margin-bottom: 2.5rem;
}

.skills-category-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skills-category-title::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}

.skill-tag {
    display: inline-block;
    padding: 8px 18px;
    margin: 5px;
    background: var(--secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.skill-tag.primary {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent);
}

/* =====================================================
   PROJECT CARDS
   ===================================================== */

.projects-section {
    background: var(--secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0;
    transition: all 0.3s ease;
    overflow: hidden;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: var(--shadow-accent);
}

.project-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: all 0.3s ease;
}

.project-card:hover .project-image {
    transform: scale(1.03);
}

.project-content {
    padding: 1.5rem;
}

.project-problem {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--light);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 1rem;
}

.project-tech span {
    font-size: 0.75rem;
    color: var(--accent);
    background: var(--accent-soft);
    padding: 4px 10px;
    border-radius: 3px;
}

.project-btn {
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 8px 20px;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.project-btn:hover {
    background: var(--accent);
    color: var(--primary);
}

/* =====================================================
   WHY HIRE ME SECTION
   ===================================================== */

.why-hire-section {
    background: var(--primary);
    padding: 5rem 0;
}

.why-hire-card {
    background: var(--secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
}

.why-hire-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.why-hire-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-soft);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--accent);
}

.why-hire-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--light);
    margin-bottom: 0.75rem;
}

.why-hire-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* =====================================================
   CERTIFICATIONS & EXPERIENCE
   ===================================================== */

.cert-badge {
    background: var(--secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.cert-badge:hover {
    border-color: var(--accent);
}

.cert-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-soft);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.5rem;
}

.cert-info h5 {
    color: var(--light);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.cert-info p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin: 0;
}

/* =====================================================
   FOOTER
   ===================================================== */

.footer {
    background: var(--secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
}

.social-links a {
    color: var(--text-secondary);
    font-size: 1.25rem;
    margin: 0 12px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    color: var(--accent);
    transform: translateY(-3px);
}

/* =====================================================
   LOADING SCREEN
   ===================================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.4s ease;
}

.loading-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loader {
    width: 50px;
    height: 50px;
    border: 3px solid var(--secondary);
    border-top: 3px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* =====================================================
   SCROLL INDICATOR
   ===================================================== */

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-secondary);
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(-8px);
    }
}

.scroll-indicator .scroll-text {
    font-size: 0.8rem;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* =====================================================
   GLASS PANEL UTILITY
   ===================================================== */

.glass-panel {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

@media (max-width: 991px) {
    .hero {
        padding: 6rem 0 3rem;
    }

    .hero-content {
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-credibility {
        display: block;
        text-align: center;
    }

    .profile-img {
        margin-bottom: 2rem;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .btn-cyber,
    .btn-outline-cyber {
        padding: 12px 24px;
        font-size: 0.9rem;
        width: 100%;
        margin-bottom: 1rem;
    }

    .section-title::before,
    .section-title::after {
        display: none;
    }

    .projects-section {
        padding: 3rem 0;
    }
}

/* =====================================================
   FORM STYLES (for Contact page)
   ===================================================== */

.form-control {
    background: var(--secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.form-control:focus {
    background: var(--secondary);
    border-color: var(--accent);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px var(--accent-soft);
    outline: none;
}

.form-control::placeholder {
    color: var(--text-secondary);
}

/* =====================================================
   UTILITIES
   ===================================================== */

.text-accent {
    color: var(--accent) !important;
}

.bg-accent-soft {
    background: var(--accent-soft) !important;
}

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