/* ============================================
   PODLASKI KEBAB — Global Styles
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    /* Colors */
    --color-primary: #C8102E;
    --color-primary-dark: #9B0D23;
    --color-primary-light: #E8354A;
    --color-secondary: #1B4332;
    --color-secondary-light: #2D6A4F;
    --color-accent: #F4A261;
    --color-accent-dark: #E08B3F;
    --color-bg: #FFFDF7;
    --color-bg-alt: #F8F5EE;
    --color-bg-dark: #1A1A1A;
    --color-bg-darker: #111111;
    --color-text: #2C2C2C;
    --color-text-light: #6B6B6B;
    --color-text-on-dark: #F5F5F5;
    --color-text-muted: #999999;
    --color-border: #E5E2DA;
    --color-overlay: rgba(0, 0, 0, 0.6);

    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;

    /* Layout */
    --container-max: 1200px;
    --container-padding: 1.5rem;
    --section-padding: 5rem;

    /* Borders */
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 50px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Navbar */
    --navbar-height: 80px;
}

/* --- CSS Reset --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--navbar-height);
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

button {
    font: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.35rem); }

p {
    margin-bottom: 1rem;
}

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

.section {
    padding: var(--space-5xl) 0;
}

.section--dark {
    background-color: var(--color-bg-dark);
    color: var(--color-text-on-dark);
}

.section--alt {
    background-color: var(--color-bg-alt);
}

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

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

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
}

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

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

.btn--outline {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

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

.btn--accent {
    background-color: var(--color-accent);
    color: var(--color-bg-dark);
}

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

.btn--lg {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn--sm {
    padding: 0.625rem 1.5rem;
    font-size: 0.875rem;
}

/* --- Scroll Animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* Staggered animation delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .fade-in,
    .fade-in-left,
    .fade-in-right,
    .scale-in {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .btn:hover {
        transform: none;
    }
}

/* --- Skip Navigation --- */
.skip-nav {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.75rem 1.5rem;
    background: var(--color-primary);
    color: white;
    font-weight: 600;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    z-index: 10000;
    transition: top var(--transition-fast);
}

.skip-nav:focus {
    top: 0;
}

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

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-text-light);
    border-radius: 5px;
}

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

/* ============================================
   NAVBAR (global for JS compatibility)
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--navbar-height);
    display: flex;
    align-items: center;
    background: transparent;
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.navbar--scrolled {
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-md);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
}

.navbar__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: white;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    z-index: 1001;
}

.navbar__logo-icon {
    width: 36px;
    height: 36px;
}

.navbar__menu {
    display: flex;
    align-items: center;
}

.navbar__list {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.navbar__link {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: var(--space-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}

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

.navbar__link:hover {
    color: white;
}

.navbar__link:hover::after {
    width: 100%;
}

.navbar__cta {
    font-size: 0.875rem;
    padding: 0.625rem 1.25rem;
}

/* Hamburger */
.navbar__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    z-index: 1001;
    padding: 0;
}

.navbar__hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background: white;
    border-radius: 2px;
    transition: all var(--transition-base);
}

.navbar__hamburger--open .navbar__hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar__hamburger--open .navbar__hamburger-line:nth-child(2) {
    opacity: 0;
}

.navbar__hamburger--open .navbar__hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile */
@media (max-width: 768px) {
    .navbar__hamburger {
        display: flex;
    }

    .navbar__cta {
        display: none;
    }

    .navbar__menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(26, 26, 26, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--transition-base), visibility var(--transition-base);
    }

    .navbar__menu--open {
        opacity: 1;
        visibility: visible;
    }

    .navbar__list {
        flex-direction: column;
        gap: var(--space-2xl);
    }

    .navbar__link {
        font-size: 1.5rem;
        color: white;
    }
}