/* Płynne przewijanie i odstęp pod przyklejony navbar */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 60px;
}

section[id] {
    scroll-margin-top: 10px;
}

/* 1. ZMIENNE MOTYWU (JASNY / CIEMNY) */
:root {
    --font-heading: 'DM Serif Display', serif;
    --bg-color: #f2e9d3; 
    --text-color: #403e3d; 
    --nav-bg: rgba(245, 243, 238, 0.95); 
    --primary-color: #b82b33; 
    --secondary-color: #249854; 
    --card-bg: #fcfbfa; 
    --shadow: rgba(0, 0, 0, 0.06);
    --nav-border: rgba(0, 0, 0, 0.1);
    --navbar-base-bg: #f5f3ee;
}

body.dark-theme {
    --bg-color: #232323;
    --text-color: #eaeaea;
    --nav-bg: rgba(30, 30, 30, 0.95);
    --primary-color: #e63946;
    --secondary-color: #2a9d8f;
    --card-bg: #242424;
    --shadow: rgba(0, 0, 0, 0.4);
    --nav-border: rgba(255, 255, 255, 0.15);
    --navbar-base-bg: #181818f3;
}

/* 2. RESET I BAZA */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Nunito', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.4s ease, color 0.4s ease;
}

h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* Zabezpieczenie grafik przed przeciąganiem i zaznaczaniem */
img {
    -webkit-user-drag: none;
    -moz-user-drag: none;
    -ms-user-drag: none;
    user-select: none;
}

/* 3. TŁA SEKCJI (NAPRZEMIENNIE) */
section {
    background-color: var(--bg-color);
    transition: background-color 0.4s ease, color 0.4s ease;
}

.bg-white {
    background-color: #ffffff !important;
}

body.dark-theme .bg-white {
    background-color: #1a1a1a !important;
}

.bg-striped {
    background-color: var(--card-bg) !important;
}

body.dark-theme .bg-striped {
    background-color: #202020 !important;
}

/* 4. PRZYCISKI GŁÓWNE */
.btn {
    display: inline-block;
    cursor: pointer;
    border: none;
}

.primary-btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: #ffffff !important;
    padding: 13px 26px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    font-family: var(--font-heading);
    letter-spacing: 0.8px;
    transition: transform 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.primary-btn:hover {
    background-color: #a01820;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(184, 43, 51, 0.25);
}

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

/* 5. ANIMACJA WEJŚCIA (FADE IN) */
.fade-in {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

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

/* 6. PRELOADER */
#loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--bg-color, #fdfbf7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 99999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.pizza-spinner {
    animation: rotatePizza 2s linear infinite, pulsePizza 1.2s ease-in-out infinite alternate;
}

.loader-text {
    margin-top: 18px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 0.5px;
    animation: textPulse 1.5s ease-in-out infinite alternate;
}

@keyframes rotatePizza {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulsePizza {
    0% { scale: 0.95; }
    100% { scale: 1.08; }
}

@keyframes textPulse {
    0% { opacity: 0.4; }
    100% { opacity: 1; }
}

#loader-wrapper.fade-out {
    opacity: 0;
    visibility: hidden;
}

/* 7. STRZAŁKA POWROTU NA GÓRĘ STRONY */
.scroll-top-btn {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background-color: var(--primary-color);
    color: #ffffff;
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    font-size: 1.4rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow);
    z-index: 990;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    background-color: #a01820;
    transform: translateY(-3px);
}