/*
=============================================
  Katarzyna Rutka-Świeszek - Dietetyk
  Landing Page Stylesheet
  Version: 1.0
=============================================
*/

/* ==========================================
   CSS Variables - Kolory i ustawienia
   ========================================== */
:root {
    /* Paleta kolorów - Przyjazne, profesjonalne tony */
    --primary-color: #2196F3;
    --primary-dark: #1976D2;
    --primary-light: #BBDEFB;

    --secondary-color: #FF6B6B;
    --secondary-dark: #E85858;
    --secondary-light: #FFE0E0;

    --accent-color: #4CAF50;
    --accent-dark: #388E3C;

    /* Kolory neutralne */
    --text-primary: #2C3E50;
    --text-secondary: #546E7A;
    --text-light: #78909C;

    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-dark: #263238;

    --border-color: #E0E0E0;
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* Typografia */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Inter', sans-serif;

    /* Rozmiary czcionek */
    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 2rem;        /* 32px */
    --text-4xl: 2.5rem;      /* 40px */
    --text-5xl: 3rem;        /* 48px */

    /* Odstępy */
    --spacing-xs: 0.5rem;    /* 8px */
    --spacing-sm: 1rem;      /* 16px */
    --spacing-md: 1.5rem;    /* 24px */
    --spacing-lg: 2rem;      /* 32px */
    --spacing-xl: 3rem;      /* 48px */
    --spacing-2xl: 4rem;     /* 64px */
    --spacing-3xl: 6rem;     /* 96px */

    /* Inne */
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --transition: all 0.3s ease;
    --shadow-sm: 0 2px 8px var(--shadow-color);
    --shadow-md: 0 4px 16px var(--shadow-color);
    --shadow-lg: 0 8px 32px var(--shadow-color);
}

/* ==========================================
   Reset i ustawienia bazowe
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typografia */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

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

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

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

/* ==========================================
   Utility Classes
   ========================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-label {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: var(--spacing-xs);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* ==========================================
   Navigation
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.logo-text {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.logo-subtitle {
    font-size: var(--text-sm);
    color: var(--primary-color);
    font-weight: 500;
}

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

.nav-link {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: var(--spacing-xs) 0;
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

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

/* Navigation Social Media Icons */
.nav-social {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    margin-left: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 1px solid var(--border-color);
}

.nav-social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    border-radius: 50%;
    transition: var(--transition);
}

.nav-social-link:hover {
    color: white;
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

.nav-social-link svg {
    width: 18px;
    height: 18px;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-light) 100%);
    opacity: 0.3;
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    padding: var(--spacing-2xl) 0;
}

.hero-text {
    animation: fadeInUp 1s ease;
}

.hero-greeting {
    display: block;
    font-size: var(--text-xl);
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
}

.hero-name {
    display: block;
    font-size: var(--text-5xl);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--text-2xl);
    color: var(--primary-color);
    font-weight: 600;
    margin: var(--spacing-sm) 0;
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin: var(--spacing-md) 0 var(--spacing-lg);
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* Hero Image */
.hero-image {
    position: relative;
    animation: fadeInRight 1s ease;
}

.image-wrapper {
    position: relative;
    display: inline-block;
}

.profile-image {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 2;
}

.image-decoration {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary-color);
    border-radius: var(--border-radius-lg);
    z-index: 1;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    animation: bounce 2s infinite;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.scroll-text {
    font-size: var(--text-sm);
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-left: 2px solid var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    transform: rotate(-45deg);
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

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

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

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

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

.btn-full {
    width: 100%;
}

/* ==========================================
   About Section
   ========================================== */
.about {
    padding: var(--spacing-3xl) 0;
    background-color: var(--bg-secondary);
}

.about-content {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

/* About Image */
.about-image {
    position: relative;
}

.about-image-wrapper {
    position: relative;
    display: inline-block;
    width: 100%;
}

.about-photo {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 2;
    transition: var(--transition);
}

.about-photo:hover {
    transform: scale(1.02);
}

.about-image-decoration {
    position: absolute;
    top: 20px;
    left: -20px;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--border-radius-lg);
    z-index: 1;
    opacity: 0.2;
}

.about-badge {
    position: absolute;
    bottom: 20px;
    right: -20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    z-index: 3;
    animation: fadeInRight 1s ease 0.5s both;
}

.about-badge svg {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.about-badge span {
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1.3;
    text-align: left;
}

/* About Text */
.about-text {
    display: flex;
    flex-direction: column;
}

.about-intro {
    font-size: var(--text-xl);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.about-description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.highlight-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-light);
    color: var(--primary-color);
    border-radius: var(--border-radius-sm);
}

.highlight-icon svg {
    width: 24px;
    height: 24px;
}

.highlight-text h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-xs);
}

.highlight-text p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* ==========================================
   Instagram Section
   ========================================== */
.instagram-section {
    max-width: 1100px;
    margin: var(--spacing-2xl) auto 0;
    padding: var(--spacing-xl);
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.instagram-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.instagram-icon {
    width: 48px;
    height: 48px;
    color: #E4405F;
    transition: var(--transition);
}

.instagram-icon:hover {
    transform: scale(1.1);
}

.instagram-header h3 {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.instagram-handle {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--primary-color);
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--primary-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

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

.instagram-posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.instagram-posts-grid .instagram-media {
    margin: 0 !important;
    min-width: 100% !important;
    max-width: 100% !important;
    border-radius: var(--border-radius) !important;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.instagram-posts-grid .instagram-media:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* ==========================================
   Contact Section
   ========================================== */
.contact {
    padding: var(--spacing-3xl) 0;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.contact-item:hover {
    background-color: var(--primary-light);
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius-sm);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-details h3 {
    font-size: var(--text-base);
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.contact-details a,
.contact-details p {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin: 0;
}

.contact-details a:hover {
    color: var(--primary-color);
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    background-color: var(--bg-dark);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-title {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-text {
    font-size: var(--text-base);
    color: #B0BEC5;
    line-height: 1.7;
}

.footer-links,
.footer-contact {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a,
.footer-contact li {
    font-size: var(--text-base);
    color: #B0BEC5;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: var(--spacing-xs);
}

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #B0BEC5;
    font-size: var(--text-sm);
    margin: 0;
}

.footer-bottom .creator-link {
    margin-top: var(--spacing-xs);
    font-size: var(--text-xs);
    color: #90A4AE;
}

.footer-bottom .creator-link a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-bottom .creator-link a:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

/* ==========================================
   Back to Top Button
   ========================================== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* ==========================================
   Responsive Design - Tablet
   ========================================== */
@media (max-width: 768px) {
    :root {
        --text-5xl: 2.5rem;
        --text-4xl: 2rem;
        --text-3xl: 1.75rem;
        --spacing-3xl: 4rem;
        --spacing-2xl: 3rem;
    }

    /* Navigation */
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 70%;
        height: calc(100vh - 70px);
        background-color: var(--bg-primary);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transition: right 0.3s ease;
        align-items: flex-start;
    }

    .nav-menu.active {
        right: 0;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }

    .mobile-menu-toggle.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    /* Social media in mobile menu */
    .nav-social {
        border-left: none;
        border-top: 1px solid var(--border-color);
        margin-left: 0;
        padding-left: 0;
        padding-top: var(--spacing-md);
        margin-top: var(--spacing-md);
        justify-content: center;
        width: 100%;
    }

    /* Hero */
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .hero-image {
        order: -1;
        max-width: 400px;
        margin: 0 auto;
    }

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

    .hero-buttons {
        justify-content: center;
    }

    /* About Section */
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .about-image {
        max-width: 350px;
        margin: 0 auto;
    }

    .about-badge {
        right: 10px;
        bottom: 10px;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .about-badge svg {
        width: 20px;
        height: 20px;
    }

    .about-badge span {
        font-size: var(--text-xs);
    }

    .about-highlights {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    /* Instagram Section */
    .instagram-section {
        padding: var(--spacing-md);
    }

    .instagram-posts-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    /* Contact */
    .contact-info {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   Responsive Design - Mobile
   ========================================== */
@media (max-width: 480px) {
    :root {
        --text-5xl: 2rem;
        --text-4xl: 1.75rem;
        --text-3xl: 1.5rem;
        --text-2xl: 1.25rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-name {
        font-size: var(--text-3xl);
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

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

    .section-title {
        font-size: var(--text-3xl);
    }
}