/* Editorial Serenity — foundation */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 72px;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-body-md-size);
    line-height: var(--text-body-md-line);
    font-weight: 400;
    background-color: var(--color-background);
    color: var(--color-on-surface);
    transition: var(--transition);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    color: var(--color-on-surface);
    margin-bottom: var(--space-md);
}

h1 {
    font-size: var(--text-h1-size);
    line-height: var(--text-h1-line);
    letter-spacing: var(--text-h1-track);
}

h2 {
    font-size: var(--text-h2-size);
    line-height: var(--text-h2-line);
    letter-spacing: var(--text-h2-track);
}

h3 {
    font-size: var(--text-h3-size);
    line-height: var(--text-h3-line);
}

h4 {
    font-size: var(--text-body-lg-size);
    line-height: var(--text-body-lg-line);
}

h5,
h6 {
    font-size: var(--text-body-md-size);
    line-height: var(--text-body-md-line);
}

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

.text-label-caps {
    font-family: var(--font-ui);
    font-size: var(--text-label-size);
    font-weight: 600;
    line-height: var(--text-label-line);
    letter-spacing: var(--text-label-track);
    text-transform: uppercase;
}

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

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-gutter);
}

/* Shared homepage section rhythm */
.tour,
.music,
.gallery,
.about {
    padding-block: var(--space-section-y);
}

.tour .container,
.music .container,
.gallery .container,
.about .container {
    max-width: var(--container-max);
}

.tour-title,
.music-title,
.gallery-title,
.about-content-h2,
.contact-form h2 {
    font-family: var(--font-heading);
    font-size: var(--text-h2-size);
    line-height: var(--text-h2-line);
    letter-spacing: var(--text-h2-track);
    font-weight: 400;
    text-align: start;
    margin: 0 0 var(--space-section-title-gap);
    color: var(--color-on-surface);
}

@media (min-width: 1024px) {
    .tour,
    .music,
    .gallery,
    .about {
        padding-block: var(--space-section-y-lg);
    }

    .tour-title,
    .music-title,
    .gallery-title,
    .about-content-h2,
    .contact-form h2 {
        margin-bottom: var(--space-section-title-gap-lg);
    }
}

.section--tight {
    padding-block: var(--space-xl);
}

/* 12 / 6 / 1 editorial grid */
.grid-12 {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-gutter);
}

.grid-12 > * {
    grid-column: span 12;
}

@media (min-width: 768px) and (max-width: 1023px) {
    .grid-12 {
        grid-template-columns: repeat(6, 1fr);
    }

    .grid-12 > .span-tablet-6 {
        grid-column: span 6;
    }

    .grid-12 > .span-tablet-3 {
        grid-column: span 3;
    }
}

@media (min-width: 1024px) {
    .grid-12 > .span-desktop-12 {
        grid-column: span 12;
    }

    .grid-12 > .span-desktop-8 {
        grid-column: span 8;
    }

    .grid-12 > .span-desktop-6 {
        grid-column: span 6;
    }

    .grid-12 > .span-desktop-4 {
        grid-column: span 4;
    }

    .grid-12 > .span-desktop-3 {
        grid-column: span 3;
    }
}

.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-outline);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--space-md);
    transition: transform var(--duration-normal) var(--ease-premium),
        box-shadow var(--duration-normal) var(--ease-premium);
}

input,
textarea {
    font-family: var(--font-body);
    background-color: var(--color-surface);
    border: 1px solid var(--color-outline);
    color: var(--color-on-surface);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-input);
    width: 100%;
    font-size: var(--text-body-md-size);
    transition: border-color var(--duration-fast) var(--ease-premium),
        box-shadow var(--duration-fast) var(--ease-premium);
}

input:focus,
textarea:focus {
    border-color: var(--color-accent);
    outline: none;
}

/* Responsive görüntü ve video */
.responsive-media {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}

.responsive-media iframe,
.responsive-media video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

@media (max-width: 767px) {
    h1 {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }

    h2 {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }

    h3 {
        font-size: clamp(1.2rem, 4vw, 1.5rem);
    }

    .container {
        padding-inline: var(--space-sm);
    }

    .grid-12 > * {
        grid-column: span 1;
    }
}