/* ============================================
   CSS VARIABLES (Light Mode Default)
   ============================================ */

:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #4f9dff;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-light: #ffffff;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #0f172a;
    
    /* Border & Shadow */
    --border-color: #e2e8f0;
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 10px 25px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Dark Mode */
[data-theme="dark"] {
    --primary-color: #4f9dff;
    --primary-dark: #3b82f6;
    --primary-light: #60a5fa;
    --accent-color: #00f2fe;
    
    --text-primary: #f1f1f1;
    --text-secondary: #cccccc;
    --text-muted: #999999;
    --text-light: #1e293b;
    
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-tertiary: #2a2a2a;
    --bg-dark: #0a0e27;
    
    --border-color: #334155;
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-heavy: 0 10px 25px rgba(0, 0, 0, 0.4);
}

/* ============================================
   GLOBAL STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-medium), color var(--transition-medium);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.25rem, 7vw, 3.5rem);
}

h2 {
    font-size: clamp(1.875rem, 5vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

p {
    font-size: clamp(0.95rem, 2.5vw, 1.1rem);
    color: var(--text-secondary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

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

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.875rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition-medium);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-medium);
    color: var(--text-primary);
    font-size: 20px;
}

.btn-icon:hover {
    background-color: var(--bg-secondary);
    transform: scale(1.05);
}

/* ============================================
   NAVBAR
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-light);
    z-index: 1000;
    transition: all var(--transition-medium);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 84px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.logo-text {
    letter-spacing: 0.5px;
}

.logo-highlight {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-menu li a {
    color: var(--text-primary);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-medium);
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    width: 100%;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Theme Toggle */
.theme-toggle-btn {
    position: relative;
}

.mode-icon-moon,
.mode-icon-sun {
    position: absolute;
    transition: opacity var(--transition-fast);
}

.mode-icon-sun.hidden {
    opacity: 0;
    pointer-events: none;
}

.mode-icon-moon.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 2.5px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-medium);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Menu */
@media (max-width: 768px) {
    .nav-menu {
        position: absolute;
        top: 84px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--bg-primary);
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-medium);
        box-shadow: var(--shadow-medium);
    }

    .nav-menu.active {
        max-height: 500px;
    }

    .nav-menu li {
        padding: var(--spacing-md) var(--spacing-lg);
        border-bottom: 1px solid var(--border-color);
    }

    .hamburger {
        display: flex;
    }
}

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

.hero {
    padding-top: 120px;
    padding-bottom: var(--spacing-3xl);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    min-height: calc(100vh - 84px);
    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.highlight {
    color: var(--primary-color);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 3.5vw, 1.5rem);
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.hero-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-medium);
}

.social-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-img {
    width: 100%;
    max-width: 400px;
    border-radius: 20px;
    box-shadow: var(--shadow-heavy);
    transition: transform var(--transition-medium);
    object-fit: cover;
}

.profile-img:hover {
    transform: scale(1.02);
}

/* Mobile Hero */
@media (max-width: 768px) {
    .hero {
        padding-top: 100px;
        padding-bottom: var(--spacing-2xl);
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .hero-image {
        order: -1;
    }
}

/* ============================================
   SECTIONS
   ============================================ */

section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--text-primary);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about {
    background-color: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: flex-start;
}

.about-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
}

.highlight-item {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: 12px;
    text-align: center;
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-light);
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.highlight-item i {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.highlight-item h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.highlight-item p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.about-images {
    display: flex;
    justify-content: center;
}

.image-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    width: 100%;
    max-width: 400px;
}

.about-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: var(--shadow-medium);
    transition: transform var(--transition-medium);
}

/* .about-img:hover {
    transform: scale(1.05);
} */

/* Container holding the vertical stack on the right side */
.about-images {
    display: flex;
    justify-content: flex-end; /* Aligns the stack to the right side of the grid row */
    align-items:center;

}

/* The vertical stack layout mechanics */
.image-vertical-stack {
    display: flex;
    flex-direction: column; /* Stacks image 1 on top, image 2 below */
    gap: var(--spacing-md);  /* Uses your existing variable for even spacing between them */
    width: 100%;
    max-width: 320px;       /* Keeps the stack scaled appropriately */
}

/* Individual image control */
.about-img {
    width: 100%;
    height: 220px;          /* Clean, uniform height for both images */
    object-fit: cover;      /* Prevents your photos from stretching or squeezing */
    border-radius: 12px;
    box-shadow: var(--shadow-medium);
    transition: transform var(--transition-medium);
}

/* Smooth hover effect */
.about-img:hover {
    transform: scale(1.5);
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-highlights {
        grid-template-columns: 1fr;
    }

    .image-grid {
        grid-template-columns: 1fr;
    }
    .about-images {
        justify-content: center; /* Center the stack on smaller screens */
        height: auto;
        width: 100%;
        aspect-ratio: 16 / 10;
    }
    .mobile-hidden {
        display: none;
    }
    /* Clear layout squashing constraints */
    .about-images,
    .image-grid,
    .image-vertical-stack {
        width: 100%;
        height: auto;
        aspect-ratio: auto;
    }

    /* Clean vertical spacing loop for both images */
    .image-vertical-stack {
        display: flex;
        flex-direction: column;
        gap: 16px; /* Adds a clean gap between the two stacked photos */
    }

    .about-img {
        width: 100%;
        height: auto;
        object-fit: cover;
        border-radius: 12px;
    }
            /* Smooth hover effect */
    .about-img:hover {
        transform: scale(1.05);
    }

    .mobile-hidden {
        display: block; 
    }
}


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

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.skill-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-medium);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.skill-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
    text-align: center;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.skill-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: transform var(--transition-fast);
}

.skill-tag:hover {
    transform: scale(1.05);
}

/* ============================================
   CERTIFICATIONS SECTION
   ============================================ */

.certifications {
    background-color: var(--bg-secondary);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}


.cert-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-color);
}

/* .cert-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-medium);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
} */

/* Keep your base icon container neutral (e.g., dark or transparent) */
.cert-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background-color: #e0f2fe; /* Neutral background container */
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   APPLYING BRAND COLORS DIRECTLY TO THE ICONS
   ============================================ */
.cert-icon.backend i { 
    color: #4f46e5; /* Indigo */
}

.cert-icon.frontend i { 
    color: #06b6d4; /* Cyan */
}

.cert-icon.javascript i { 
    color: #eab308; /* Yellow */
}

.cert-icon.networking i { 
    color: #3b82f6; /* Blue */
}

.cert-icon.security i { 
    color: #10b981; /* Emerald Green */
}

.cert-icon.webdev i { 
    color: #06b6d4; /* Udemy Violet */
}

.cert-card:hover .cert-icon {
    transform: scale(1.1) rotateZ(5deg);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}


.cert-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: all var(--transition-medium);
    min-height: 340px; 
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

.cert-card h3 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
    display: block;
    white-space: normal;
    overflow: visible;
}
.cert-issuer {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    /* margin-top: var(--spacing-md); */
    font-weight: 600;
}

.cert-year {
    font-size: 0.8125rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.cert-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
    margin-bottom: var(--spacing-sm);
}

.cert-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

.cert-id {
    font-size: 0.6875rem;
    color: var(--text-muted);
    word-break: break-all;
    opacity: 0.7;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-medium);
    display: flex;
    flex-direction: column;
}

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

.project-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-medium);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

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

.project-links {
    display: flex;
    gap: var(--spacing-sm);
}

.project-link,
.project-link-btn {
    flex: 1;
    padding: 10px 16px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.project-link:hover,
.project-link-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact {
    background-color: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.contact-info > p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
}

.contact-item i {
    font-size: 24px;
    color: var(--primary-color);
    width: 30px;
    text-align: center;
    flex-shrink: 0;
}

.contact-item h4 {
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.contact-item p,
.contact-item a {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.contact-social {
    display: flex;
    gap: 1rem;
}

.contact-social a {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-medium);
}

.contact-social a:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.contact-form-wrapper {
    background-color: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: 12px;
    box-shadow: var(--shadow-medium);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-medium);
    box-sizing: border-box;
    width: 100%;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.contact-form .btn {
    width: 100%;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    justify-content: center;
    
    }

    .contact-form-wrapper {
        padding: 24px 16px; /* Eases desktop padding so the form fits nicely on mobile screens */
    }
}

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

/* .footer {
    background-color: var(--bg-secondary);
    padding: var(--spacing-2xl) 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-content p {
    margin: var(--spacing-sm) 0;
    color: var(--text-secondary);
} */

/* ============================================
   FOOTER SECTION (RESTRUCTURED QUICK LINKS MATRIX)
   ============================================ */

.footer {
    background-color: var(--bg-dark);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg) 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.footer-brand h3 { margin-bottom: var(--spacing-sm); }
.footer-brand p { color: #94a3b8; font-size: 0.95rem; }

.footer-quick-links h4 {
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-links-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.footer-link {
    color: #94a3b8;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary-light);
}

.footer-bottom {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid #334155;
    color: #94a3b8;
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .footer-links-grid { justify-items: center; }
}

/* ============================================
   MODALS
   ============================================ */

.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 1;
    transition: opacity var(--transition-medium);
}

.modal.hidden {
    display: none;
    opacity: 0;
    pointer-events: none;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background-color: var(--bg-primary);
    border-radius: 16px;
    max-width: 600px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    z-index: 2001;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 10;
}

.modal-close:hover {
    background-color: var(--primary-color);
    color: white;
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-2xl);
}

.modal-body h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.modal-body p {
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.modal-icon {
    width: 80px;
    height: 80px;
    font-size: 40px;
    margin: 0 auto var(--spacing-lg);
}

.modal-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: var(--spacing-lg) 0;
}

.modal-section {
    margin-bottom: var(--spacing-lg);
}

.modal-section h3 {
    font-size: 0.75rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 700;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.skill-badge {
    background-color: var(--primary-color);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.cert-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.cert-links a {
    flex: 1;
    padding: 10px 16px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: block;
}

.cert-links a:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.cert-links .close-btn {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.cert-links .close-btn:hover {
    background-color: var(--border-color);
}

/* ============================================
   NOTIFICATION
   ============================================ */

.notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--success-color);
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: var(--shadow-heavy);
    z-index: 3000;
    animation: slideIn 0.3s ease;
}

.notification.hidden {
    display: none;
}

.notification.error {
    background-color: var(--error-color);
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ============================================
   SCROLL TO TOP
   ============================================ */

.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-medium);
    z-index: 999;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.scroll-to-top.visible {
    display: flex;
}

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;
    }
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .navbar,
    .scroll-to-top,
    .contact-form {
        display: none;
    }

    body {
        background: white;
        color: black;
    }
}