/* Font Import */
@import url('https://fonts.googleapis.com/css2?family=DM+Mono:ital,wght@0,300;0,400;0,500;1,300;1,400;1,500&display=swap');

/* CSS Variables */
:root {
    /* Colors */
    --black: #000000;
    --white: #ffffff;
    --red: #ff0000;
    --red-error: #ff4444;
    --green: #00ff00;
    --blue: #0033ff;
    --purple: #5b21b6;
    --gray-dark: #0a0a0a;
    --gray-light: #e0e0e0;
    
    /* Opacity variations */
    --border-subtle: rgba(255, 255, 255, 0.1);
    --border-medium: rgba(255, 255, 255, 0.2);
    --border-disabled: rgba(255, 255, 255, 0.4);
    --border-dark: rgba(0, 0, 0, 0.2);
    --text-muted: rgba(224, 224, 224, 0.5);
    --text-disabled: rgba(224, 224, 224, 0.4);
    --green-shadow: rgba(0, 255, 0, 0.1);
    
    /* Semantic colors */
    --card-bg: var(--gray-dark);
    --card-text: var(--gray-light);
    --text-color: var(--gray-light);
    --bg-color: var(--black);
    --blue-bg: var(--blue);
    --blue-text: var(--white);
    --green-bg: var(--green);
    --green-text: var(--black);
    --purple-bg: var(--purple);
    --purple-text: var(--white);
    
    /* Spacing */
    --space-md: 1rem;
    --space-lg: 1.5rem;
    
    /* Typography */
    --font-base: 1.25rem;
    --font-sm: 1.09375rem;
    --font-md: 1.171875rem;
    --font-lg: 1.40625rem;
    --font-xl: 1.875rem;
    --font-xxl: 2.25rem;
}

/* 
 * Breakpoint: 768px (tablet and up)
 * Note: CSS custom properties cannot be used in media queries
 * All responsive styles consolidated below
 */

/* Base */
body {
    font-family: "DM Mono", monospace;
    font-weight: 400;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    font-size: var(--font-base);
}

/* Text Selection */
::selection {
    background-color: var(--red);
    color: var(--white);
}

::-moz-selection {
    background-color: var(--red);
    color: var(--white);
}

/* Skip Link - Hidden until keyboard focus */
.skip-link {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    background: var(--green-bg);
    color: var(--black);
    padding: 0.5rem 1rem;
    text-decoration: none;
    font-weight: 500;
    z-index: 100;
    white-space: nowrap;
}

.skip-link:focus {
    position: absolute;
    left: var(--space-md);
    top: var(--space-md);
    width: auto;
    height: auto;
    overflow: visible;
    clip: auto;
}

/* Focus Styles */
*:focus {
    outline: 2px solid var(--green-bg);
    outline-offset: 2px;
}

*:focus:not(:focus-visible) {
    outline: none;
}

*:focus-visible {
    outline: 2px solid var(--green-bg);
    outline-offset: 2px;
}

img,
video {
    height: auto;
}

/* Navigation */
.nav {
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: 0;
}

.nav__logo {
    font-size: var(--font-xl);
    font-weight: 500;
    color: var(--white);
    line-height: 1;
    margin: 0;
    margin-bottom: var(--space-md);
}

.nav__actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-md);
    margin-left: calc(var(--space-md) * -1);
    margin-right: calc(var(--space-md) * -1);
    padding-left: var(--space-md);
    padding-right: var(--space-md);
    border-top: 1px solid var(--border-subtle);
}

.nav__lang {
    background: none;
    border: none;
    color: var(--text-color);
    font-family: inherit;
    font-size: var(--font-base);
    font-weight: 400;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    line-height: 1;
}

.nav__lang-option {
    opacity: 0.4;
    transition: opacity 0.2s ease;
}

.nav__lang-option--active {
    opacity: 1;
    color: var(--green-bg);
}

.nav__lang-option:hover {
    opacity: 0.7;
}

.nav__lang:focus-visible {
    outline: 2px solid var(--green-bg);
    outline-offset: 4px;
    border-radius: 2px;
}

.nav__lang-separator {
    opacity: 0.4;
}

.nav__button--cta {
    background-color: var(--purple-bg);
    color: var(--purple-text);
    padding: 0.75rem 1.5rem;
    border-radius: 100px;
    font-weight: 500;
    text-decoration: none;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    transition: all 0.2s ease;
}

.nav__button--cta:hover {
    background-color: var(--white);
    color: var(--black);
}

.nav__button--cta:focus-visible {
    outline: 2px solid var(--green-bg);
    outline-offset: 4px;
}


/* Main Content */
.section {
    display: grid;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    color: var(--card-text);
    padding: var(--space-md);
}

.card--blue {
    background-color: var(--blue-bg);
    color: var(--blue-text);
}

.card--lime {
    background-color: var(--green-bg);
    color: var(--green-text);
}

.card--black {
    background-color: var(--bg-color);
    color: var(--text-color);
}

.card__title {
    margin-bottom: var(--space-md);
    font-weight: 500;
    font-size: var(--font-lg);
}

.card__title--large {
    font-size: var(--font-xxl);
    line-height: 1.2;
    text-decoration: underline;
    margin-bottom: var(--space-lg);
}

.card__text {
    font-weight: 400;
    line-height: 1.5;
}

.card__text a {
    color: inherit;
    text-decoration: underline;
    font-weight: 500;
}

/* Event card typography */
.card__text--date {
    font-size: var(--font-lg);
    margin-bottom: 0.5rem;
}

.card__text--date strong {
    font-weight: 500;
}

.card__text--location {
    font-size: var(--font-sm);
    opacity: 0.9;
    margin-bottom: var(--space-md);
}

.card__text--description {
    font-size: var(--font-md);
    line-height: 1.6;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    margin-left: calc(var(--space-md) * -1);
    margin-right: calc(var(--space-md) * -1);
    padding-left: var(--space-md);
    padding-right: var(--space-md);
    border-top: 1px solid var(--border-subtle);
}

.card__text--description strong {
    font-weight: 500;
    opacity: 1;
    color: var(--green-bg);
}

.card--lime .card__text--description {
    border-top-color: var(--border-dark);
}

/* Card Button (RSVP) */
.card__button {
    display: inline-flex;
    align-items: center;
    margin-top: var(--space-md);
    background-color: var(--black);
    color: var(--green-bg);
    padding: 0.75rem 1.5rem;
    border-radius: 100px;
    border: 2px solid var(--green-bg);
    font-weight: 500;
    text-decoration: none;
    text-transform: lowercase;
    line-height: 1;
    transition: all 0.2s ease;
}

.card__button:hover {
    background-color: var(--white);
    color: var(--black);
    border-color: var(--white);
}

.card__button:focus-visible {
    outline: 2px solid var(--green-bg);
    outline-offset: 4px;
}



/* CFP Typography */
.card__text--intro {
    font-size: var(--font-md);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.card__text--format {
    font-size: var(--font-sm);
    opacity: 0.9;
    line-height: 1.5;
    text-decoration: underline;
    margin-bottom: var(--space-md);
}

/* Form Styles */
.cfp-form {
    margin-top: var(--space-lg);
}

.form__group {
    margin-bottom: var(--space-md);
    position: relative;
}

.form__error {
    display: block;
    color: var(--red-error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form__hint {
    display: block;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    text-align: right;
}

.form__label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    text-transform: lowercase;
}

.form__input,
.form__textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-medium);
    background-color: var(--black);
    color: var(--card-text);
    font-family: inherit;
    font-size: var(--font-base);
    border-radius: 4px;
    box-sizing: border-box;
}

.form__input::placeholder,
.form__textarea::placeholder {
    color: var(--text-disabled);
}

.form__input:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--green-bg);
    box-shadow: 0 0 0 2px var(--green-shadow);
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
}

.form__submit {
    background-color: var(--green-bg);
    color: var(--black);
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--green-bg);
    border-radius: 100px;
    font-weight: 500;
    font-size: var(--font-base);
    cursor: pointer;
    text-transform: lowercase;
    transition: all 0.2s ease;
    line-height: 1;
    display: inline-flex;
    align-items: center;
}

.form__submit:hover:not(:disabled) {
    background-color: var(--white);
    color: var(--black);
    border-color: var(--white);
}

.form__submit:active:not(:disabled) {
    transform: translateY(0);
}

.form__submit:focus-visible {
    outline: 2px solid var(--green-bg);
    outline-offset: 4px;
}

.form__submit:disabled {
    background-color: transparent;
    color: var(--border-disabled);
    border: 2px solid var(--border-disabled);
    cursor: not-allowed;
}

/* Social Section */
.social {
    padding: var(--space-md);
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.social__title {
    font-size: var(--font-sm);
    color: var(--text-muted);
    margin: 0;
    font-weight: 400;
    line-height: 1.2;
}

.social__links {
    display: flex;
    flex-direction: row;
    gap: 0.25rem;
    flex-wrap: nowrap;
    align-items: center;
    padding: 0;
}

.social__link {
    font-size: var(--font-sm);
    color: var(--card-text);
    text-decoration: none;
    transition: color 0.2s ease;
    line-height: 1;
}

.social__link:hover {
    color: var(--green-bg);
}

.social__link:focus-visible {
    outline: 2px solid var(--green-bg);
    outline-offset: 4px;
    border-radius: 2px;
}

.social__separator {
    font-size: var(--font-sm);
    color: var(--text-disabled);
    line-height: 1;
}


/* Footer */
.footer {
    color: var(--card-text);
    padding: var(--space-md);
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-subtle);
}

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

.footer__brand {
    margin: 0;
}

.footer__logo {
    font-size: var(--font-sm);
    font-weight: 400;
    color: var(--card-text);
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.footer__tagline {
    font-size: var(--font-sm);
    color: var(--text-muted);
    font-weight: 400;
    margin: 0;
    line-height: 1.2;
}

.footer__meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    text-align: left;
    padding-top: var(--space-md);
    margin-left: calc(var(--space-md) * -1);
    margin-right: calc(var(--space-md) * -1);
    padding-left: var(--space-md);
    padding-right: var(--space-md);
    border-top: 1px solid var(--border-subtle);
}

.footer__text {
    font-size: var(--font-sm);
    color: var(--text-muted);
    margin: 0;
    font-weight: 400;
    line-height: 1.2;
}

/* ========================================
   Tablet and up (min-width: 768px)
   ======================================== */
@media (min-width: 768px) {
    /* Navigation */
    .nav {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .nav__logo {
        margin-bottom: 0;
    }
    
    .nav__actions {
        width: auto;
        gap: calc(var(--space-md) * 2);
        padding-top: 0;
        border-top: none;
        margin-left: 0;
        margin-right: 0;
        padding-left: 0;
        padding-right: 0;
    }
    
    /* Two-column grid */
    .section--two-col {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Social */
    .social {
        flex-direction: row;
        justify-content: space-between;
    }
    
    /* Footer */
    .footer__content {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }
    
    .footer__brand {
        padding-bottom: 0;
    }
    
    .footer__meta {
        text-align: right;
        padding-top: 0;
        border-top: none;
        margin-left: 0;
        margin-right: 0;
        padding-left: 0;
        padding-right: 0;
    }
}

/* Safe area for notched devices */
@supports (padding: max(0px)) {
    body {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
        padding-bottom: max(0px, env(safe-area-inset-bottom));
    }
}