/* ===== VARIABLES ===== */
:root {
    /* Colors */
    --color-primary: #000000;
    --color-secondary: #333333;
    --color-accent: #666666;
    --color-light: #f5f5f5;
    --color-white: #ffffff;
    --color-pink: #f27baa;
    --color-purple: #6261a8;
    
    /* Typography */
    --font-primary: 'Manrope', sans-serif;
    --font-secondary: 'Manrope', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-slow: 0.8s ease;
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    margin-bottom: var(--spacing-md);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.section-title:after {
    content: '';
    display: block;
    width: 50px;
    height: 2px;
    background-color: var(--color-pink);
    margin: var(--spacing-sm) auto 0;
}

.headroom {
    will-change: transform;
    transition: transform 200ms linear;
}
.headroom--pinned {
    transform: translateY(0%);
}
.headroom--unpinned {
    transform: translateY(-100%);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--color-pink);
    color: var(--color-white);
    border: none;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn:hover {
    background-color: var(--color-light);
    transform: translateY(-2px);
    color: var(--color-pink);
    border: 1px solid var(--color-pink);
}

.btn-outline {
    display: inline-block;
    padding: 12px 30px;
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-outline:hover {
    background-color: var(--color-pink);
    color: var(--color-white);
    transform: translateY(-2px);
    border: none;
}

.btn-white {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--color-white);
    color: var(--color-primary);
    border: none;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-white:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

/* ===== HEADER & NAVIGATION ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 30px 0;
    z-index: 1000;
    transition: var(--transition-medium);
    background-color: transparent;
}

header.scrolled {
    padding: 15px 0;
    background-color: var(--color-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-family: var(--font-secondary);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.logo {
width: 130px;
}

.nav-links {
    display: flex;
}

.nav-links li {
    margin-left: var(--spacing-md);
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

.nav-links a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-pink);
    transition: var(--transition-fast);
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-primary);
    margin: 5px 0;
    transition: var(--transition-fast);
}

/* ===== FOOTER ===== */
footer {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-light);
    text-align: center;
}

.social-icons {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.social-icons a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-pink);
    color: var(--color-white);
    margin: 0 10px;
    transition: var(--transition-fast);
}

.social-icons a:hover {
    transform: translateY(-3px);
    background-color: var(--color-secondary);
}

.copyright {
    font-size: 0.9rem;
    color: var(--color-secondary);
}

/* ===== ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 1s forwards;
}

.portfolio-big-text {
    padding: 60px 0;
    text-align: center;
    
}

.portfolio-big-text p {
    font-size: 3.5rem;
    font-weight: 800;
    color: #d2d2d2;
    margin: 0;
    letter-spacing: -3px;
    line-height: 52px;
}

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

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-medium);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 992px) {
    h1 {
        font-size: 2.8rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--color-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition-medium);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links li {
        margin: var(--spacing-md) 0;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 576px) {
    .container {
        width: 95%;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .btn, .btn-outline, .btn-white {
        padding: 10px 20px;
        font-size: 0.8rem;
    }
}