/* ==========================================================================
   CSS Variables & Design System - Vintage Bicycle Theme
   ========================================================================== */
   :root {
    /* Colors */
    --color-dark: #1e2622; /* Dark Racing Green */
    --color-dark-alt: #161c19;
    --color-light: #f4f1ea; /* Vintage paper/canvas */
    --color-accent: #9a2a2a; /* Deep Burgundy / Corsa Red */
    --color-accent-hover: #731e1e;
    --color-text: #333333;
    --color-text-muted: #666666;
    --color-white: #ffffff;
    --color-black: #0a0a0a;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-heading-alt: 'Lato', sans-serif;
    --font-body: 'Lato', sans-serif;
    
    /* Fluid Typography (clamp) */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.35rem);
    --text-xl: clamp(1.35rem, 1.1rem + 0.75vw, 1.6rem);
    --text-2xl: clamp(1.6rem, 1.3rem + 1vw, 2.2rem);
    --text-3xl: clamp(2.2rem, 1.5rem + 2.5vw, 3.5rem);
    --text-4xl: clamp(2.8rem, 2rem + 4vw, 5.5rem);
    
    /* Fluid Spacing */
    --space-xs: clamp(0.5rem, 0.4rem + 0.5vw, 0.75rem);
    --space-sm: clamp(1rem, 0.8rem + 1vw, 1.5rem);
    --space-md: clamp(2rem, 1.5rem + 2.5vw, 3rem);
    --space-lg: clamp(4rem, 3rem + 5vw, 6rem);
    --space-xl: clamp(6rem, 5rem + 5vw, 10rem);
    
    /* Layout */
    --container-width: 1200px;
    --border-radius: 2px;
    --transition: all 0.3s ease-in-out;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html { scroll-behavior: smooth; }

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
    color: var(--color-black);
}

.text-dark { color: var(--color-black) !important; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

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

.section { padding: var(--space-lg) 0; }
.section__title { font-size: var(--text-3xl); margin-bottom: var(--space-sm); }
.text-center { text-align: center; }
.text-accent { color: var(--color-accent); font-style: italic;}
.text-white { color: var(--color-white); }
.bg-dark { background-color: var(--color-dark); color: var(--color-light); }
.bg-dark h2, .bg-dark h3, .bg-dark h4 { color: var(--color-light); }
.bg-light { background-color: #ffffff; }
.bg-accent { background-color: var(--color-accent); color: var(--color-white); }
.underline { text-decoration: underline; }
.mt-4 { margin-top: var(--space-md); }
.mb-4 { margin-bottom: var(--space-md); }

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-sm);
    font-weight: 700;
    font-family: var(--font-heading-alt);
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    text-align: center;
}

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

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

.btn--outline {
    border: 1px solid var(--color-white);
    color: var(--color-white);
}

.btn--outline:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}

.btn--outline-light {
    border: 1px solid var(--color-white);
    color: var(--color-white);
}

.btn--outline-light:hover {
    background-color: var(--color-white);
    color: var(--color-accent);
}

/* ==========================================================================
   Components
   ========================================================================== */

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: var(--space-sm) 0;
    transition: background-color 0.3s ease;
}

.header.scrolled {
    background-color: rgba(30, 38, 34, 0.95);
    backdrop-filter: blur(5px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

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

.logo {
    font-family: var(--font-heading-alt);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 2px;
}

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

.nav__link {
    color: var(--color-white);
    font-size: var(--text-sm);
    font-family: var(--font-heading-alt);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav__link:hover { color: var(--color-accent); }

.nav__toggle {
    display: none;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 101;
}

.nav__icon, .nav__icon::before, .nav__icon::after {
    content: ''; position: absolute; width: 100%; height: 2px;
    background-color: var(--color-white); transition: var(--transition);
}
.nav__icon { top: 50%; transform: translateY(-50%); }
.nav__icon::before { top: -8px; }
.nav__icon::after { bottom: -8px; }

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.hero__bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; }
.hero__image { width: 100%; height: 100%; object-fit: cover; }
.hero__overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle, rgba(0,0,0,0.4) 0%, rgba(30,38,34,0.8) 100%);
}
.hero__content { color: var(--color-white); max-width: 900px; padding-top: var(--space-xl); }
.hero__kicker {
    font-family: var(--font-heading-alt); text-transform: uppercase; letter-spacing: 3px;
    font-size: var(--text-sm); margin-bottom: var(--space-sm); color: #d4a373; /* honey leather color */
}
.hero__title { font-size: var(--text-4xl); margin-bottom: var(--space-md); color: var(--color-white); }
.hero__subtitle { font-size: var(--text-lg); margin-bottom: var(--space-lg); max-width: 700px; margin-left: auto; margin-right: auto; }

/* Trust Badges */
.trust { background-color: var(--color-black); color: var(--color-white); padding: var(--space-sm) 0; }
.trust__container { display: flex; justify-content: space-around; flex-wrap: wrap; gap: var(--space-md); }
.trust__item { display: flex; align-items: center; gap: var(--space-xs); font-size: var(--text-sm); font-family: var(--font-heading-alt); text-transform: uppercase; letter-spacing: 1px; }

/* About Story */
.about__container { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); align-items: center; }
.about__text p { margin-bottom: var(--space-sm); font-size: var(--text-lg); }
.about__image-wrapper img { border: 4px solid var(--color-white); box-shadow: 0 10px 30px rgba(0,0,0,0.15); }

/* Philosophy */
.philosophy { padding: var(--space-xl) 0; }
.philosophy__text { font-size: var(--text-2xl); font-family: var(--font-heading); max-width: 900px; margin: 0 auto; line-height: 1.5; }

/* Features */
.features__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--space-md); margin-top: var(--space-lg); }
.feature-card { padding: var(--space-md); background-color: var(--color-light); border-top: 3px solid var(--color-accent); }
.feature-card__title { font-size: var(--text-xl); margin-bottom: var(--space-xs); }

/* Bento Grid */
.bento-grid { display: grid; grid-template-columns: repeat(2, 1fr); grid-auto-rows: 250px; gap: var(--space-sm); margin-top: var(--space-lg); }
.bento-item { background-color: var(--color-dark); overflow: hidden; position: relative; }
.bento-item--large { grid-row: span 2; }
.bento__image { width: 100%; height: 100%; object-fit: cover; opacity: 0.7; transition: var(--transition); }
.bento-item:hover .bento__image { opacity: 0.9; transform: scale(1.02); }
.bento__content { padding: var(--space-md); height: 100%; display: flex; flex-direction: column; justify-content: center; }
.bento__content--overlay { position: absolute; bottom: 0; left: 0; width: 100%; background: linear-gradient(to top, rgba(0,0,0,0.9), transparent); justify-content: flex-end; }
.bento__content h3 { margin-bottom: 5px; color: var(--color-white); }
.bento__content p { color: rgba(255,255,255,0.7); }

/* Process */
.process__steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: var(--space-lg); margin-top: var(--space-lg); }
.process__step { text-align: center; }
.process__num { display: block; font-size: var(--text-4xl); font-family: var(--font-heading-alt); color: var(--color-accent); margin-bottom: var(--space-xs); font-weight: 700;}

/* Partners */
.partners__title { font-family: var(--font-heading-alt); text-transform: uppercase; letter-spacing: 2px; margin-bottom: var(--space-md); color: var(--color-text-muted); font-size: var(--text-sm); }
.partners__flex { display: flex; justify-content: center; gap: var(--space-xl); flex-wrap: wrap; font-family: var(--font-heading); font-size: var(--text-2xl); opacity: 0.6; }

/* Testimonials */
.testimonial-card { max-width: 800px; margin: 0 auto; padding: var(--space-md); border-left: 4px solid var(--color-accent); background-color: #ffffff;}
.testimonial-card__text { font-size: var(--text-xl); font-style: italic; margin-bottom: var(--space-sm); color: var(--color-black); }
.testimonial-card__author { color: var(--color-accent); font-family: var(--font-heading-alt); text-transform: uppercase; letter-spacing: 1px; font-weight: 700;}

/* FAQ */
.faq__container { max-width: 800px; }
.accordion__item { margin-bottom: var(--space-xs); background-color: var(--color-light); border: 1px solid #ddd; }
.accordion__btn { width: 100%; text-align: left; padding: var(--space-sm) var(--space-md); font-size: var(--text-lg); color: var(--color-black); display: flex; justify-content: space-between; align-items: center; font-weight: 600;}
.accordion__btn::after { content: '+'; font-size: var(--text-xl); color: var(--color-accent); }
.accordion__btn[aria-expanded="true"]::after { content: '−'; }
.accordion__content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.accordion__content p { padding: 0 var(--space-md) var(--space-sm) var(--space-md); }

/* Footer */
.footer { padding: var(--space-lg) 0 var(--space-sm); }
.footer__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: var(--space-md); margin-bottom: var(--space-md); }
.footer__brand { font-size: var(--text-2xl); letter-spacing: 1px; color: var(--color-white); }
.footer__links li { margin-bottom: 5px; }
.footer__link-btn { color: var(--color-text-muted); }
.footer__link-btn:hover { color: var(--color-white); }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: var(--space-sm); font-size: var(--text-sm); color: var(--color-text-muted); }

/* Modals */
.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 1000; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: var(--transition); }
.modal.is-open { opacity: 1; visibility: visible; }
.modal__overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.8); }
.modal__content { background-color: var(--color-light); color: var(--color-black); width: 90%; max-width: 500px; padding: var(--space-lg); position: relative; z-index: 1001; max-height: 90vh; overflow-y: auto; transform: translateY(20px); transition: var(--transition); }
.modal.is-open .modal__content { transform: translateY(0); }
.modal__content--large { max-width: 800px; }
.modal__close { position: absolute; top: 15px; right: 20px; font-size: var(--text-3xl); color: var(--color-black); }
.modal__close:hover { color: var(--color-accent); }

/* Forms */
.form__group { margin-bottom: var(--space-sm); }
.form__group label { display: block; margin-bottom: 5px; font-size: var(--text-sm); font-family: var(--font-heading-alt); color: var(--color-black); text-transform: uppercase; font-weight: 700; }
.form__group input { width: 100%; padding: 12px; border: 1px solid #ccc; font-family: inherit; font-size: var(--text-base); }
.form__group input:focus { outline: none; border-color: var(--color-accent); }

/* Cookie Banner */
.cookie-banner { position: fixed; bottom: -100%; left: 0; width: 100%; background-color: var(--color-black); color: var(--color-white); padding: var(--space-sm) 0; z-index: 999; transition: bottom 0.5s ease; }
.cookie-banner.is-visible { bottom: 0; }
.cookie-banner__flex { display: flex; justify-content: space-between; align-items: center; gap: var(--space-md); }

/* Animations */
.fade-up { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.is-visible { opacity: 1; transform: translateY(0); }
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Media Queries */
@media (max-width: 768px) {
    .nav__toggle { display: block; }
    .nav__list { position: fixed; top: 0; right: -100%; width: 100%; height: 100vh; background-color: var(--color-dark); flex-direction: column; justify-content: center; transition: var(--transition); }
    .nav__list.is-open { right: 0; }
    .about__container { grid-template-columns: 1fr; }
    .bento-grid { grid-template-columns: 1fr; grid-auto-rows: auto; }
    .bento-item--large { grid-row: auto; height: 300px; }
    .bento-item:not(.bento-item--large) { height: 200px; }
}