/* ==========================================================================
   Südindische Küche - Main Stylesheet
   Warm & Organic Design Theme
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Variables)
   -------------------------------------------------------------------------- */
:root {
    /* Primary Colors */
    --color-turmeric: #D4A84B;
    --color-curry-leaf: #4A7C59;
    --color-terracotta: #C75B39;
    --color-chili: #8B2500;

    /* Neutral Colors */
    --color-cream: #FAF6F0;
    --color-white: #FFFEF9;
    --color-brown: #5C4033;
    --color-dark: #2D2318;
    --color-footer: #3A3A3A;

    /* Accent Colors */
    --color-leaf: #7CB342;
    --color-saffron: #F89106;

    /* Semantic Colors */
    --color-background: var(--color-cream);
    --color-text: var(--color-brown);
    --color-heading: var(--color-dark);
    --color-primary: var(--color-turmeric);
    --color-secondary: var(--color-curry-leaf);
    --color-accent: var(--color-terracotta);

    /* Font Families */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Font Sizes (Fluid Typography) */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
    --text-3xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
    --text-4xl: clamp(2.5rem, 2rem + 3vw, 4rem);

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

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);

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

    /* Layout */
    --container-max: 1200px;
    --header-height: 100px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

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

    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: #FFB830;
    text-decoration: underline;
}

ul, ol {
    list-style: none;
}

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

address {
    font-style: normal;
}

/* --------------------------------------------------------------------------
   3. Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-heading);
    line-height: 1.2;
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

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

p:last-child {
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   4. Layout Utilities
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* --------------------------------------------------------------------------
   5. Components
   -------------------------------------------------------------------------- */

/* 5.1 Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-white);
    border: 2px solid var(--color-accent);
}

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

.btn--instagram {
    background-color: #E4405F;
    color: white;
    border: 2px solid #E4405F;
}

.btn--instagram:hover {
    background-color: #d62e4c;
    border-color: #d62e4c;
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--instagram svg {
    flex-shrink: 0;
}

/* 5.2 Section Titles */
.section-title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-lg);
}

.section-title__accent {
    display: block;
    color: var(--color-primary);
    font-style: italic;
}

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

.section-title--light {
    color: var(--color-white);
}

.section-title--light .section-title__accent {
    color: var(--color-turmeric);
}

/* --------------------------------------------------------------------------
   6. Header & Navigation
   -------------------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    transition: all var(--transition-base);
}

.header--scrolled {
    background-color: rgba(255, 254, 249, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

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

.logo__image {
    height: 70px;
    width: auto;
    border-radius: var(--radius-sm);
}

.nav__list {
    display: flex;
    gap: var(--space-lg);
}

.nav__link {
    font-size: var(--text-lg);
    font-weight: 600;
    color: #FFFFFF;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-sm) 0;
    position: relative;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

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

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

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

/* When header has background, use darker text */
.header--scrolled .nav__link {
    color: var(--color-dark);
    text-shadow: none;
}

.header--scrolled .nav__link:hover {
    color: var(--color-primary);
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    padding: 0;
    z-index: 1001;
}

.nav-toggle__line {
    display: block;
    width: 100%;
    height: 3px;
    background-color: #FFFFFF;
    border-radius: 2px;
    transition: all var(--transition-base);
}

.header--scrolled .nav-toggle__line {
    background-color: var(--color-dark);
}

.nav-toggle.active .nav-toggle__line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active .nav-toggle__line:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .nav-toggle__line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* --------------------------------------------------------------------------
   7. Sections
   -------------------------------------------------------------------------- */

/* 7.1 Hero Section */
.hero {
    position: relative;
    width: 100%;
    height: 95vh;
    min-height: 600px;
    max-height: 900px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: calc(var(--header-height) + var(--space-xl)) var(--space-md) var(--space-lg);
    overflow: hidden;
}

.hero__background {
    position: absolute;
    inset: 0;
    z-index: -1;
    background-color: #8B7355;
}

.hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(45, 35, 24, 0.25),
        rgba(45, 35, 24, 0.4)
    );
}

.hero__content {
    text-align: center;
    color: var(--color-white);
    position: relative;
    z-index: 1;
}

.hero__title {
    font-size: var(--text-4xl);
    color: var(--color-white);
    margin-bottom: var(--space-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero__title span {
    color: var(--color-turmeric);
}

.hero__subtitle {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
    opacity: 0.9;
}

.hero__price {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-turmeric);
    margin-bottom: var(--space-xl);
}

.hero__dates {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
    max-width: 700px;
    margin: 0 auto;
}

.date-card {
    background-color: var(--color-white);
    color: var(--color-text);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.date-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.date-card__day {
    display: block;
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
}

.date-card__month {
    display: block;
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-xs);
}

.date-card__info {
    font-size: var(--text-xs);
    color: var(--color-text);
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.date-card .btn {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--text-xs);
}

.hero__divider {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    overflow: hidden;
}

.hero__divider svg {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 100%;
    fill: var(--color-cream);
}

/* 7.1b Dates Section */
.dates-section {
    padding: var(--space-xl) 0 var(--space-lg);
    background-color: var(--color-cream);
}

.dates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
    max-width: 700px;
    margin: 0 auto;
}

/* 7.2 Introduction Section */
.intro {
    padding: var(--space-lg) 0 var(--space-2xl);
    background-color: var(--color-cream);
}

.intro__grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xl);
    align-items: center;
}

.intro__content {
    flex: 1 1 400px;
    min-width: 300px;
}

.intro__text {
    font-size: var(--text-lg);
    line-height: 1.8;
}

.intro__image-wrapper {
    flex: 1 1 400px;
    min-width: 300px;
    max-width: 500px;
}

.intro__image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* 7.3 Expectations Section */
.expectations {
    position: relative;
    padding: var(--space-2xl) 0;
    background-color: rgba(74, 124, 89, 0.1);
}

.expectations__divider-top,
.expectations__divider-bottom {
    position: absolute;
    left: 0;
    right: 0;
    height: 80px;
    overflow: hidden;
}

.expectations__divider-top {
    top: 0;
    transform: rotate(180deg);
}

.expectations__divider-top svg {
    fill: var(--color-cream);
}

.expectations__divider-bottom {
    bottom: 0;
}

.expectations__divider-bottom svg {
    fill: var(--color-cream);
}

.feature-list {
    max-width: 800px;
    margin: 0 auto;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid rgba(74, 124, 89, 0.2);
}

.feature-item:last-child {
    border-bottom: none;
}

.feature-item__icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background-color: var(--color-secondary);
    border-radius: 50%;
    position: relative;
}

.feature-item__icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background-color: var(--color-white);
    border-radius: 50%;
}

.feature-item__text {
    font-size: var(--text-lg);
    color: var(--color-dark);
}

/* 7.4 About Section */
.about {
    padding: var(--space-2xl) 0;
    background-color: var(--color-cream);
}

.about__grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xl);
    align-items: center;
}

.about__content {
    flex: 1 1 400px;
    min-width: 300px;
}

.about__image-wrapper {
    flex: 0 1 400px;
    min-width: 280px;
    max-width: 400px;
    position: relative;
}

.about__image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.about__image-decoration {
    position: absolute;
    top: -15px;
    left: -15px;
    width: 100%;
    height: 100%;
    background-color: var(--color-primary);
    border-radius: var(--radius-lg);
    z-index: 0;
    opacity: 0.3;
}

.about__text {
    font-size: var(--text-lg);
    line-height: 1.8;
}

/* 7.5 Kerala Section */
.kerala {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    padding: var(--space-2xl) 0;
    overflow: hidden;
}

.kerala__background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.kerala__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.kerala__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(45, 35, 24, 0.85),
        rgba(45, 35, 24, 0.6)
    );
}

.kerala__content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.kerala__text {
    font-size: var(--text-lg);
    color: var(--color-white);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
    opacity: 0.95;
}

.kerala__quote {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-style: italic;
    color: var(--color-turmeric);
    padding-left: var(--space-lg);
    border-left: 4px solid var(--color-turmeric);
}

/* 7.6 Info Section */
.info {
    padding: var(--space-2xl) 0;
    background-color: var(--color-cream);
}

.info__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.info-card {
    background-color: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.info-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.info-card--highlight {
    border: 2px solid var(--color-accent);
}

.info-card__icon {
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.info-card__title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
}

.info-card__list {
    font-size: var(--text-base);
}

.info-card__list li {
    padding: var(--space-xs) 0;
}

.info-card__address {
    font-size: var(--text-base);
    line-height: 1.6;
}

.info-card__price {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-accent);
}

.info-card__price-note {
    font-size: var(--text-sm);
    color: var(--color-text);
}

.info-card__email {
    display: block;
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-saffron);
    word-break: break-all;
    margin-bottom: var(--space-sm);
}

.info-card__email:hover {
    color: #FFB830;
    text-decoration: underline;
}

.info-card__note {
    font-size: var(--text-sm);
    color: var(--color-text);
    opacity: 0.8;
}

.info__instagram {
    text-align: center;
    padding: var(--space-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.info__instagram p {
    margin-bottom: var(--space-md);
    font-size: var(--text-lg);
}

/* 7.7 Footer */
.footer {
    background-color: var(--color-footer);
    padding: var(--space-xl) 0;
}

.footer__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    text-align: center;
}

.footer__logo {
    height: 60px;
    width: auto;
    border-radius: var(--radius-sm);
    opacity: 0.9;
}

.footer__copyright {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
}

.footer__social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transition: all var(--transition-base);
}

.footer__social a:hover {
    color: var(--color-white);
    border-color: var(--color-primary);
    background-color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   8. Back to Top Button
   -------------------------------------------------------------------------- */
.back-to-top {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 999;
}

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

.back-to-top:hover {
    background-color: var(--color-accent);
    transform: translateY(-3px);
}

/* --------------------------------------------------------------------------
   9. Animations
   -------------------------------------------------------------------------- */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation for hero date cards */
.hero__dates .date-card:nth-child(1) { transition-delay: 0.1s; }
.hero__dates .date-card:nth-child(2) { transition-delay: 0.2s; }
.hero__dates .date-card:nth-child(3) { transition-delay: 0.3s; }

/* Stagger animation for feature items */
.feature-item:nth-child(1) { transition-delay: 0.05s; }
.feature-item:nth-child(2) { transition-delay: 0.1s; }
.feature-item:nth-child(3) { transition-delay: 0.15s; }
.feature-item:nth-child(4) { transition-delay: 0.2s; }
.feature-item:nth-child(5) { transition-delay: 0.25s; }
.feature-item:nth-child(6) { transition-delay: 0.3s; }
.feature-item:nth-child(7) { transition-delay: 0.35s; }

/* Stagger animation for info cards */
.info__grid .info-card:nth-child(1) { transition-delay: 0.1s; }
.info__grid .info-card:nth-child(2) { transition-delay: 0.2s; }
.info__grid .info-card:nth-child(3) { transition-delay: 0.3s; }
.info__grid .info-card:nth-child(4) { transition-delay: 0.4s; }

/* --------------------------------------------------------------------------
   10. Media Queries
   -------------------------------------------------------------------------- */

/* Tablet */
@media (max-width: 992px) {
    :root {
        --header-height: 90px;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background-color: var(--color-dark);
        padding: calc(var(--header-height) + var(--space-xl)) var(--space-lg) var(--space-lg);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-base);
        z-index: 1000;
    }

    .nav.active {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .nav__link {
        font-size: var(--text-xl);
        display: block;
        padding: var(--space-md);
        color: var(--color-white) !important;
        text-shadow: none !important;
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-sm);
        transition: background-color var(--transition-fast);
    }

    .nav__link:hover {
        background-color: var(--color-primary);
        color: var(--color-white) !important;
    }

    .nav-toggle {
        display: flex;
    }

    .intro__grid {
        gap: var(--space-lg);
    }

    .intro__image-wrapper {
        max-width: 100%;
    }

    .about__grid {
        gap: var(--space-lg);
    }

    .about__image-wrapper {
        max-width: 100%;
        order: -1;
    }

    .about__image-decoration {
        top: -10px;
        left: -10px;
    }

    .info__grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --header-height: 80px;
        --space-xl: 3rem;
        --space-2xl: 4rem;
    }

    .hero {
        min-height: auto;
        padding-top: calc(var(--header-height) + var(--space-lg));
        padding-bottom: var(--space-xl);
    }

    .hero__dates {
        grid-template-columns: 1fr;
    }

    .hero__divider {
        height: 50px;
    }

    .expectations__divider-top,
    .expectations__divider-bottom {
        height: 50px;
    }

    .kerala {
        min-height: auto;
        padding: var(--space-xl) 0;
    }

    .kerala__content {
        max-width: 100%;
    }

    .logo__image {
        height: 55px;
    }

    .section-title {
        font-size: var(--text-2xl);
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }

    .btn {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--text-xs);
    }

    .date-card {
        padding: var(--space-md);
    }

    .info-card {
        padding: var(--space-md);
    }

    .back-to-top {
        width: 44px;
        height: 44px;
        bottom: var(--space-md);
        right: var(--space-md);
    }
}

/* Body scroll lock when nav is open */
body.nav-open {
    overflow: hidden;
}