*,
*::before,
*::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    position: relative;
    min-height: 100vh;
    line-height: 1.6;
    font-family: var(--font-body);
    font-weight: var(--font-weight-regular);
    color: var(--color-text-body);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;

    
    --welcome-backdrop-texture: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='paper'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.04' numOctaves='5' result='noise'/%3E%3CfeDiffuseLighting in='noise' lighting-color='%23f8f4eb' surfaceScale='1'%3E%3CfeDistantLight azimuth='45' elevation='60'/%3E%3C/feDiffuseLighting%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23paper)'/%3E%3C/svg%3E");
    --welcome-backdrop-texture-opacity: 0.3;
    --welcome-paper-texture: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='paper'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.04' numOctaves='5' result='noise'/%3E%3CfeDiffuseLighting in='noise' lighting-color='%23f8f4eb' surfaceScale='1'%3E%3CfeDistantLight azimuth='45' elevation='60'/%3E%3C/feDiffuseLighting%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23paper)'/%3E%3C/svg%3E");
    --welcome-paper-texture-opacity: 0.3;

    
    --rsvp-paper-texture: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='paper'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.04' numOctaves='5' result='noise'/%3E%3CfeDiffuseLighting in='noise' lighting-color='%23f8f4eb' surfaceScale='1'%3E%3CfeDistantLight azimuth='45' elevation='60'/%3E%3C/feDiffuseLighting%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23paper)'/%3E%3C/svg%3E");
    --rsvp-paper-texture-opacity: 0.3;
    --rsvp-card-texture: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='paper'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.04' numOctaves='5' result='noise'/%3E%3CfeDiffuseLighting in='noise' lighting-color='%23faf6ef' surfaceScale='1.2'%3E%3CfeDistantLight azimuth='45' elevation='60'/%3E%3C/feDiffuseLighting%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23paper)'/%3E%3C/svg%3E");
}

body::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    min-height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='paper'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.04' numOctaves='5' result='noise'/%3E%3CfeDiffuseLighting in='noise' lighting-color='%23f8f4eb' surfaceScale='1'%3E%3CfeDistantLight azimuth='45' elevation='60'/%3E%3C/feDiffuseLighting%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23paper)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px 200px;
    opacity: 0.3;
    pointer-events: none;
    z-index: -1;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
    height: auto;
}

input,
button,
textarea,
select {
    font: inherit;
    color: inherit;
}

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

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

ul,
ol {
    list-style: none;
}

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

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

p {
    color: var(--color-text-body);
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.container--narrow {
    max-width: var(--container-narrow);
}

.section {
    padding-top: var(--section-padding-mobile);
    padding-bottom: var(--section-padding-mobile);
}

@media (min-width: 768px) {
    .section {
        padding-top: var(--section-padding);
        padding-bottom: var(--section-padding);
    }
}

.site-content {
    position: relative;
    background-color: transparent;
}

.section__header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section__title {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    margin-bottom: var(--space-sm);
}

.section__subtitle {
    display: block;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-text-muted); }

.flex { display: flex; }
.flex-center { display: flex; justify-content: center; align-items: center; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-col { flex-direction: column; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

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

.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }

@media (min-width: 768px) {
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.5rem 1.5rem;
    font-family: var(--font-body);
    font-weight: var(--font-weight-medium);
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
    text-decoration: none;
    border: 1px solid transparent;
}

.btn--primary {
    background-color: var(--color-text-heading);
    color: var(--color-bg-surface);
}

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

.btn--outline {
    background-color: transparent;
    border-color: var(--color-text-heading);
    color: var(--color-text-heading);
}

.btn--outline:hover {
    background-color: var(--color-text-heading);
    color: var(--color-bg-surface);
}

.btn--link {
    background: transparent;
    padding: 0;
    border: none;
    color: var(--color-text-heading);
    font-size: 0.85rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.05em;
    position: relative;
}

.btn--link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background: currentColor;
    opacity: 0.3;
    transition: opacity var(--transition-fast);
}

.btn--link:hover::after {
    opacity: 1;
}

.card {
    background-color: var(--color-bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp var(--transition-smooth) forwards;
}

.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;
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}