/* ========================================
   IT-GIRL PORTFOLIO - BLACK, WHITE, METALLIC, RED
   ======================================== */

/* CSS Variables - Color Palette */
:root {
    /* Main Colors */
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-red: #DC143C;
    --color-red-dark: #A01020;
    
    /* Metallic Shades */
    --color-silver: #C0C0C0;
    --color-silver-light: #E8E8E8;
    --color-silver-dark: #808080;
    --color-chrome: linear-gradient(135deg, #E8E8E8 0%, #C0C0C0 50%, #A8A8A8 100%);
    
    /* Grays */
    --color-gray-900: #1A1A1A;
    --color-gray-800: #2A2A2A;
    --color-gray-700: #3A3A3A;
    --color-gray-300: #CCCCCC;
    --color-gray-200: #E5E5E5;
    --color-gray-100: #F5F5F5;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    
    /* Typography */
    --font-primary: 'Montserrat', sans-serif;
    --font-display: 'Playfair Display', serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-black);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

p {
    margin-bottom: 1rem;
    color: var(--color-gray-700);
}

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

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

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 1000;
    transition: var(--transition-normal);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-black);
    letter-spacing: 1px;
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-red);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-normal);
}

.logo:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    position: relative;
    color: var(--color-gray-800);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--color-red);
    transform: scaleX(0);
    transition: transform var(--transition-fast);
}

.nav-links a:hover::after {
    transform: scaleX(1);
}

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

.hero {
    margin-top: 80px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-gray-100) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: var(--color-chrome);
    opacity: 0.1;
    transform: skewX(-10deg);
    transform-origin: top right;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.hero-text {
    z-index: 1;
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    margin-bottom: var(--space-sm);
    background: var(--color-red-dark);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    color: var(--color-silver-dark);
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    max-width: 500px;
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

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

.btn {
    padding: 1rem 2rem;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    border: 2px solid;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-block;
}

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

.btn-primary:hover {
    background: var(--color-red-dark);
    border-color: var(--color-red-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(220, 20, 60, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-black);
    border-color: var(--color-black);
}

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

.hero-image {
    position: relative;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    height: auto;
    max-height: 600px;
    object-fit: cover;
    border-radius: 0;
    box-shadow: 
        20px 20px 0 rgba(220, 20, 60, 0.2),
        -10px -10px 0 rgba(192, 192, 192, 0.3);
    transition: var(--transition-slow);
}

.hero-image img:hover {
    transform: translate(5px, 5px);
    box-shadow: 
        15px 15px 0 rgba(220, 20, 60, 0.3),
        -5px -5px 0 rgba(192, 192, 192, 0.4);
}

/* ========================================
   MAIN CONTENT
   ======================================== */

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

/* Section Styling */
section {
    padding: var(--space-2xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    margin-bottom: var(--space-sm);
    position: relative;
    display: inline-block;
}

.section-divider {
    width: 80px;
    height: 3px;
    background: var(--color-red);
    margin: 0 auto var(--space-md);
    position: relative;
}

.section-divider::before,
.section-divider::after {
    content: '';
    position: absolute;
    top: 0;
    width: 20px;
    height: 3px;
    background: var(--color-silver);
}

.section-divider::before { left: -30px; }
.section-divider::after { right: -30px; }

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    max-width: 600px;
    margin: 0 auto;
}

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

.about {
    background: var(--color-gray-100);
    margin: 0 calc(-1 * var(--space-md));
    padding: var(--space-md) var(--space-md) var(--space-lg);
}

.about-content {
    max-width: 100%;
    margin: var(--space-2xl) auto 0;
}

.about-text {
    padding: 0;
}

.about-heading {
    color: var(--color-red);
    margin-bottom: var(--space-sm);
    font-size: 1.5rem;
    text-align: center;
}

.about-text p {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1rem;
    text-align: left;
}

.about-text p strong {
    color: var(--color-red);
    font-weight: 600;
}

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

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

.skill-card {
    background: var(--color-white);
    padding: var(--space-lg);
    border: 2px solid var(--color-gray-200);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--color-chrome);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.skill-card:hover::before {
    transform: scaleX(1);
}

.skill-card:hover {
    border-color: var(--color-red);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.skill-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.skill-card h3 {
    margin-bottom: var(--space-md);
    color: var(--color-black);
    font-size: 1.5rem;
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-gray-700);
}

.skill-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-red);
    font-weight: bold;
}

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

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.project-card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    padding: var(--space-lg);
    position: relative;
    transition: all var(--transition-normal);
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--space-md);
}

.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: var(--color-silver);
    transition: var(--transition-normal);
}

.project-card:hover::after {
    background: var(--color-red);
}

.project-number {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-silver-light);
    line-height: 1;
    transition: var(--transition-normal);
}

.project-card:hover .project-number {
    color: var(--color-red);
}

.project-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.project-title {
    font-size: 1.75rem;
    color: var(--color-black);
    margin-bottom: var(--space-xs);
}

.project-description {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-gray-700);
    margin-bottom: var(--space-sm);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--space-sm);
}

.tech-tag {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    background: var(--color-gray-100);
    color: var(--color-gray-800);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border: 1px solid var(--color-gray-300);
    transition: var(--transition-fast);
}

.tech-tag:hover {
    background: var(--color-red);
    color: var(--color-white);
    border-color: var(--color-red);
}

.project-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: auto;
}

.project-link {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-red);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    padding-bottom: 2px;
}

.project-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-red);
    transform: scaleX(1);
    transition: transform var(--transition-fast);
}

.project-link:hover::after {
    transform: scaleX(0);
}

.project-link.secondary {
    color: var(--color-gray-700);
}

.project-link.secondary::after {
    background: var(--color-gray-700);
}

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

.contact {
    background: var(--color-black);
    color: var(--color-white);
    margin: 0 calc(-1 * var(--space-md));
    padding: var(--space-xl) var(--space-md) var(--space-lg);
}

.contact .section-title {
    color: var(--color-white);
    font-size: 2rem;
}

.contact .section-subtitle {
    color: var(--color-silver-light);
}

.contact-content {
    max-width: 600px;
    margin: var(--space-md) auto 0;
    text-align: center;
}

.contact-text {
    font-size: 1.125rem;
    color: var(--color-silver-light);
    margin-bottom: var(--space-lg);
}

.contact-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: transparent;
    border: 2px solid var(--color-silver);
    color: var(--color-silver);
    font-size: 1.5rem;
    transition: all var(--transition-normal);
    position: relative;
}

.contact-link::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--color-silver), var(--color-red));
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: -1;
}

.contact-link:hover {
    border-color: transparent;
    color: var(--color-white);
    transform: translateY(-5px);
}

.contact-link:hover::before {
    opacity: 1;
}

.contact-icon {
    font-size: 1.5rem;
}

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

.footer {
    background: var(--color-black);
    color: var(--color-silver-light);
    text-align: center;
    padding: var(--space-lg) var(--space-md);
    border-top: 1px solid var(--color-gray-900);
}

.footer-content p {
    margin-bottom: 0.5rem;
    color: var(--color-silver-light);
}

.footer-tagline {
    color: var(--color-silver-dark);
    font-style: italic;
    font-size: 0.95rem;
}

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

/* Tablet */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .hero-image {
        order: -1;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .about-image {
        max-width: 300px;
        margin: 0 auto;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-container {
        padding: 1rem;
    }
    
    .nav-links {
        gap: 1rem;
        font-size: 0.85rem;
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .hero {
        margin-top: 60px;
        min-height: auto;
    }
    
    .hero-content {
        padding: var(--space-lg) var(--space-sm);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .project-card {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }
    
    .project-number {
        font-size: 3rem;
    }
    
    .contact-links {
        max-width: 100%;
    }
    
    section {
        padding: var(--space-xl) 0;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .nav-links {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

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

.text-center { text-align: center; }
.text-red { color: var(--color-red); }
.text-white { color: var(--color-white); }

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus States */
a:focus,
button:focus {
    outline: 2px solid var(--color-red);
    outline-offset: 2px;
}

/* Selection */
::selection {
    background: var(--color-red);
    color: var(--color-white);
}