/* ============================================
   National Education Summit 2026
   Mobile-first responsive stylesheet
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
    --ie-red: #dd3333;
    --ie-red-hover: #c42a2a;
    --navy: #111827;
    --charcoal: #1e293b;
    --white: #FFFFFF;
    --light-gray: #f8f9fa;
    --warm-gray: #f1f0ee;
    --steel: #64748b;
    --red-light: #fef2f2;
    --gold: #d4a843;

    --font-heading: 'Inter', system-ui, sans-serif;
    --font-body: 'Source Sans 3', 'Source Sans Pro', system-ui, sans-serif;

    --container-max: 1200px;
    --container-padding: 1.25rem;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);

    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;

    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    color: var(--charcoal);
    background: var(--white);
    line-height: 1.6;
    font-size: clamp(0.9375rem, 0.85rem + 0.25vw, 1.0625rem);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

/* ---------- Container ---------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ---------- Shared Section Styles ---------- */
.section-label {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--ie-red);
    margin-bottom: 0.75rem;
}

.section-label--light {
    color: rgba(255,255,255,0.7);
}

.section-heading {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--navy);
    line-height: 1.2;
    font-size: clamp(1.75rem, 1.3rem + 1.5vw, 2.75rem);
    margin-bottom: 1rem;
}

.section-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--ie-red), var(--gold));
    border-radius: 2px;
    margin-bottom: 1.5rem;
}

.section-divider--center {
    margin-left: auto;
    margin-right: auto;
}

.section-divider--light {
    background: linear-gradient(90deg, var(--ie-red), rgba(255,255,255,0.3));
}

/* ---------- Scroll Reveal Animations ---------- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal--left {
    transform: translateX(-40px);
}

.reveal--right {
    transform: translateX(40px);
}

.reveal.visible {
    opacity: 1;
    transform: translate(0, 0);
}

/* Stagger children */
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ============================================
   SECTION 1: NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--white);
    transition: box-shadow var(--transition);
}

.nav.scrolled {
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.nav__inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav__logos {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav__logo-link {
    display: flex;
    align-items: center;
}

.nav__logo--ie {
    height: 48px;
    width: auto;
}

.nav__logo--nes {
    height: 56px;
    width: auto;
}

.nav__logo-fallback {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--navy);
    font-size: 1rem;
    display: flex;
    align-items: center;
}

/* Hamburger */
.nav__hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav__hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--navy);
    border-radius: 1px;
    transition: var(--transition);
}

.nav__hamburger.active .nav__hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav__hamburger.active .nav__hamburger-line:nth-child(2) {
    opacity: 0;
}

.nav__hamburger.active .nav__hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.nav__menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 1.5rem var(--container-padding);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.3s ease,
                visibility 0.3s ease;
}

.nav__menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.nav__link {
    font-size: 1rem;
    font-weight: 600;
    color: var(--charcoal);
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--light-gray);
    transition: color var(--transition);
}

.nav__link:hover,
.nav__link:focus {
    color: var(--ie-red);
}

.nav__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--ie-red);
    color: var(--white);
    font-weight: 700;
    font-size: 0.9375rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    margin-top: 0.5rem;
    transition: background var(--transition), transform var(--transition);
}

.nav__btn:hover {
    background: var(--ie-red-hover);
    transform: translateY(-1px);
}

/* Desktop nav */
@media (min-width: 768px) {
    .nav__hamburger {
        display: none;
    }

    .nav__menu {
        position: static;
        flex-direction: row;
        align-items: center;
        gap: 2rem;
        padding: 0;
        box-shadow: none;
        transform: none;
        opacity: 1;
        visibility: visible;
        background: transparent;
    }

    .nav__link {
        padding: 0;
        border-bottom: none;
        font-size: 0.9375rem;
        position: relative;
    }

    .nav__link::after {
        content: '';
        position: absolute;
        bottom: -4px;
        left: 0;
        width: 0;
        height: 2px;
        background: var(--ie-red);
        transition: width var(--transition);
    }

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

    .nav__btn {
        margin-top: 0;
        padding: 0.625rem 1.25rem;
    }
}

/* ============================================
   SECTION 2: HERO
   ============================================ */
.hero-section {
    padding: 90px var(--container-padding) 3rem;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    background: var(--white);
}

.hero-card {
    width: 100%;
    max-width: var(--container-max);
    background: var(--navy);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    overflow: hidden;
    position: relative;
}

.hero-card__right {
    display: none;
}

.hero-card__image-comp {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.hero-card__venue-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-card__image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(17, 24, 39, 0.6) 0%, rgba(17, 24, 39, 0.3) 100%);
}

.hero-card__logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 55%;
    max-width: 200px;
    height: auto;
    filter: drop-shadow(0 4px 24px rgba(0, 0, 0, 0.4));
}

.hero-card__top-row {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.hero-card__date,
.hero-card__venue {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.6);
}

.hero-card__content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.hero-card__left {
    flex: 1;
}

.hero-card__badge {
    display: inline-block;
    background: var(--ie-red);
    color: var(--white);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.375rem 1rem;
    border-radius: 2rem;
    margin-bottom: 1.5rem;
}

.hero-card__title {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--white);
    font-size: clamp(2rem, 1.2rem + 3vw, 3.75rem);
    line-height: 1.1;
    margin-bottom: 1rem;
}

.hero-card__subtitle {
    font-family: var(--font-heading);
    color: rgba(255,255,255,0.7);
    font-size: clamp(1.125rem, 0.9rem + 0.8vw, 1.5rem);
    margin-bottom: 0.25rem;
}

.hero-card__tagline {
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1.25rem;
}

.hero-card__desc {
    color: rgba(255,255,255,0.65);
    font-size: 1rem;
    max-width: 540px;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.hero-card__info {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.hero-card__info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255,255,255,0.7);
    font-size: 0.9375rem;
}

.hero-card__info-item svg {
    flex-shrink: 0;
    color: var(--ie-red);
}

/* ============================================
   COUNTDOWN STRIP
   ============================================ */
.countdown-strip {
    padding: 0 var(--container-padding);
    margin-top: 1.5rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 2;
}

.countdown-strip__card {
    background: var(--navy);
    border-radius: var(--radius-lg);
    padding: 2rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    position: relative;
    overflow: hidden;
    max-width: var(--container-max);
    margin: 0 auto;
}

.countdown-strip__card::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(221,51,51,0.1) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.countdown-strip__left {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    position: relative;
    z-index: 1;
}

.countdown-strip__label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.5);
}

.countdown-strip__right {
    position: relative;
    z-index: 1;
}

/* Countdown digits */
.countdown {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.countdown__block {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255,255,255,0.06);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    width: 60px;
}

.countdown__number {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 1.5rem + 2.5vw, 4rem);
    font-weight: 700;
    color: var(--ie-red);
    line-height: 1;
    font-variant-numeric: tabular-nums;
    text-align: center;
}

.countdown__label {
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
    margin-top: 0.375rem;
}

.countdown__separator {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 1rem + 2vw, 3rem);
    font-weight: 700;
    color: rgba(255,255,255,0.2);
    line-height: 1;
    margin-bottom: 0.75rem;
}

/* CTA in countdown strip */
.countdown-strip__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--ie-red);
    color: var(--white);
    font-weight: 700;
    font-size: 1rem;
    padding: 1rem 2.5rem;
    border-radius: var(--radius-sm);
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    white-space: nowrap;
    box-shadow: 0 0 30px rgba(221,51,51,0.25);
}

.countdown-strip__cta:hover {
    background: var(--ie-red-hover);
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(221,51,51,0.4);
}

.countdown-strip__cta svg {
    transition: transform var(--transition);
}

.countdown-strip__cta:hover svg {
    transform: translateX(4px);
}

/* Desktop: horizontal layout */
@media (min-width: 900px) {
    .countdown-strip {
        margin-top: 1.5rem;
    }

    .countdown-strip__card {
        flex-direction: row;
        justify-content: space-between;
        padding: 2.5rem 3rem;
    }

    .countdown-strip__left {
        flex-direction: row;
        align-items: center;
        gap: 1.5rem;
    }

    .countdown__block {
        padding: 1rem 1.25rem;
        width: 80px;
    }
}

@media (min-width: 1024px) {
    .countdown-strip__card {
        padding: 2.5rem 3.5rem;
    }

    .countdown__block {
        padding: 1rem 1.5rem;
        width: 90px;
    }
}

/* Hero right */
.hero-card__right {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-card__logo {
    width: 200px;
    height: auto;
    opacity: 0.9;
    filter: drop-shadow(0 0 40px rgba(221,51,51,0.15));
}

/* Hero desktop */
@media (min-width: 768px) {
    .hero-section {
        padding: 100px 2rem 2rem;
    }

    .hero-card {
        padding: 2.5rem;
    }

    .hero-card__top-row {
        flex-direction: row;
        justify-content: space-between;
    }

    .hero-card__content {
        flex-direction: row;
        align-items: center;
    }

    .hero-card__right {
        display: block;
        flex: 0 0 300px;
    }

    .hero-card__logo {
        max-width: 180px;
    }
}

@media (min-width: 1024px) {
    .hero-card {
        padding: 3rem;
    }

    .hero-card__right {
        flex: 0 0 360px;
    }

    .hero-card__logo {
        max-width: 220px;
    }
}

/* ============================================
   SECTION 3: ABOUT
   ============================================ */
.about {
    padding: 5rem 0;
    background: var(--light-gray);
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.about__image-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about__image-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--ie-red);
    z-index: 1;
}

.about__image-card img {
    width: 100%;
    height: 350px;
    object-fit: cover;
}

.about__text {
    color: var(--steel);
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.about__highlights {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.about__highlight {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: var(--white);
    padding: 1.25rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

.about__highlight:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.about__highlight-num {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ie-red);
    line-height: 1;
    flex-shrink: 0;
}

.about__highlight-text {
    font-weight: 600;
    color: var(--navy);
    font-size: 1rem;
    line-height: 1.4;
}

@media (min-width: 768px) {
    .about__grid {
        grid-template-columns: 1fr 1fr;
    }

    .about__image-card img {
        height: 450px;
    }
}

/* ============================================
   SECTION 4: WHY THIS MATTERS
   ============================================ */
.why {
    padding: 5rem 0;
    background: var(--white);
}

.why__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.why__intro {
    color: var(--steel);
    font-size: 1.0625rem;
    line-height: 1.7;
}

.why__stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.why__stat-card {
    background: var(--white);
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: var(--radius-md);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition);
}

.why__stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.why__stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 2rem + 2vw, 4rem);
    font-weight: 700;
    color: var(--ie-red);
    line-height: 1;
    margin-bottom: 0.75rem;
}

.why__stat-label {
    display: block;
    color: var(--steel);
    font-size: 1rem;
    line-height: 1.5;
}

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

/* ============================================
   SECTION 5: PILLARS
   ============================================ */
.pillars {
    padding: 5rem 0;
    background: var(--light-gray);
}

.pillars__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.pillars__intro {
    color: var(--steel);
    font-size: 1.0625rem;
    line-height: 1.7;
}

.pillars__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.pillars__card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0,0,0,0.04);
    transition: transform var(--transition), box-shadow var(--transition);
}

.pillars__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pillars__card-accent {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--ie-red);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.pillars__card:hover .pillars__card-accent {
    transform: scaleX(1);
}

.pillars__card-badge {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ie-red);
    background: var(--red-light);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    margin-bottom: 1rem;
}

.pillars__card-icon {
    margin-bottom: 1rem;
}

.pillars__card-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.375rem;
    color: var(--navy);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.pillars__card-panel {
    font-style: italic;
    color: var(--ie-red);
    font-size: 0.9375rem;
    margin-bottom: 0.75rem;
    line-height: 1.5;
    padding-left: 1rem;
    border-left: 2px solid var(--ie-red);
}

.pillars__card-desc {
    color: var(--steel);
    font-size: 0.9375rem;
    line-height: 1.7;
}

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

/* ============================================
   SECTION 6: KEYNOTE
   ============================================ */
.keynote {
    padding: 6rem 0;
    background: var(--navy);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.keynote::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(221,51,51,0.08) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.keynote__content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.keynote__avatar {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    overflow: hidden;
    margin: 1.5rem auto 1rem;
    border: 4px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.keynote__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.keynote__name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(2rem, 1.5rem + 2vw, 3.5rem);
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 0.75rem;
}

.keynote__role {
    color: var(--gold);
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.keynote__desc {
    color: rgba(255,255,255,0.7);
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.keynote__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--ie-red);
    color: var(--white);
    font-weight: 700;
    font-size: 1rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-sm);
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.keynote__cta:hover {
    background: var(--ie-red-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(221,51,51,0.3);
}

/* ============================================
   SECTION 7: REGISTRATION
   ============================================ */
.register {
    padding: 5rem 0;
    background: var(--white);
}

.register__header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem;
}

.register__intro {
    color: var(--steel);
    font-size: 1.0625rem;
}

/* Alerts */
.register__alert {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-sm);
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.register__alert svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.register__alert--success {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
}

.register__alert--success svg {
    color: #16a34a;
}

.register__alert--error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.register__alert--error svg {
    color: #dc2626;
}

.register__alert strong {
    display: block;
    margin-bottom: 0.25rem;
}

.register__alert a {
    color: inherit;
    text-decoration: underline;
}

/* Confirmation Panel */
.register__confirmation {
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
    background: var(--white);
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: var(--radius-md);
    padding: 3rem 2rem;
    box-shadow: var(--shadow-md);
}

.register__confirmation-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: #f0fdf4;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.register__confirmation-icon svg {
    width: 44px;
    height: 44px;
}

.register__confirmation-icon .checkmark-circle {
    stroke: #16a34a;
    stroke-width: 2;
    fill: none;
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
    animation: checkmark-circle 0.6s ease-in-out forwards;
}

.register__confirmation-icon .checkmark-check {
    stroke: #16a34a;
    stroke-width: 3;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 48;
    stroke-dashoffset: 48;
    animation: checkmark-check 0.4s 0.4s ease-in-out forwards;
}

@keyframes checkmark-circle {
    to { stroke-dashoffset: 0; }
}

@keyframes checkmark-check {
    to { stroke-dashoffset: 0; }
}

.register__confirmation h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--navy);
    margin-bottom: 0.75rem;
}

.register__confirmation > p {
    color: var(--steel);
    font-size: 1.0625rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.register__confirmation-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.register__confirmation-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--light-gray);
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
    text-align: left;
}

.register__confirmation-card svg {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    color: var(--ie-red);
}

.register__confirmation-card strong {
    display: block;
    font-size: 0.8125rem;
    color: var(--steel);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.125rem;
}

.register__confirmation-card span {
    font-size: 1rem;
    color: var(--navy);
    font-weight: 600;
}

.register__confirmation-email {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--radius-sm);
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: #166534;
    font-size: 0.9375rem;
}

.register__confirmation-email svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.register__confirmation-contact {
    font-size: 0.875rem;
    color: var(--steel);
    line-height: 1.6;
}

.register__confirmation-contact a {
    color: var(--ie-red);
    text-decoration: none;
    font-weight: 600;
}

.register__confirmation-contact a:hover {
    text-decoration: underline;
}

@media (min-width: 600px) {
    .register__confirmation-details {
        flex-direction: row;
    }

    .register__confirmation-card {
        flex: 1;
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
        padding: 1.25rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .register__confirmation-icon .checkmark-circle,
    .register__confirmation-icon .checkmark-check {
        animation: none;
        stroke-dashoffset: 0;
    }
}

/* Form */
.register__form {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: var(--radius-md);
    padding: 2rem 1.5rem;
    box-shadow: var(--shadow-md);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: 0.375rem;
}

.required {
    color: var(--ie-red);
}

.form-group input:not([type="checkbox"]),
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--charcoal);
    background: var(--white);
    transition: border-color var(--transition), box-shadow var(--transition);
    appearance: none;
    -webkit-appearance: none;
}

.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.5rem;
}

.form-group input:not([type="checkbox"]):focus,
.form-group select:focus {
    outline: none;
    border-color: var(--ie-red);
    box-shadow: 0 0 0 3px rgba(221,51,51,0.1);
}

.form-group input:not([type="checkbox"]).error,
.form-group select.error {
    border-color: var(--ie-red);
}

.form-error {
    font-size: 0.8125rem;
    color: var(--ie-red);
    margin-top: 0.25rem;
    min-height: 1.2em;
}

/* Checkbox */
.form-group--full {
    margin-bottom: 1.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--charcoal);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 2px;
    accent-color: var(--ie-red);
    cursor: pointer;
}

/* Submit */
.register__submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 1rem;
    background: var(--ie-red);
    color: var(--white);
    font-family: var(--font-body);
    font-size: 1.0625rem;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.register__submit:hover {
    background: var(--ie-red-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(221,51,51,0.3);
}

.register__submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.register__submit svg {
    transition: transform var(--transition);
}

.register__submit:hover svg {
    transform: translateX(4px);
}

.register__note {
    text-align: center;
    color: var(--steel);
    font-size: 0.8125rem;
    margin-top: 1rem;
}

@media (min-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr 1fr;
    }

    .register__form {
        padding: 2.5rem;
    }
}

/* ============================================
   SECTION 8: VENUE
   ============================================ */
.venue {
    padding: 5rem 0;
    background: var(--light-gray);
}

.venue__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
}

.venue__details {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.venue__info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.venue__info-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.venue__info-item svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.venue__info-item strong {
    display: block;
    color: var(--navy);
    font-size: 0.9375rem;
    margin-bottom: 0.125rem;
}

.venue__info-item p {
    color: var(--steel);
    font-size: 0.9375rem;
    line-height: 1.5;
}

.venue__map {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.venue__map iframe {
    display: block;
}

@media (min-width: 768px) {
    .venue__grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ============================================
   SECTION 9: FEATURES
   ============================================ */
.features {
    padding: 5rem 0;
    background: var(--white);
}

.features__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.features__sub-heading {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--navy);
    margin-bottom: 1.5rem;
}

.features__panels {
    margin-bottom: 4rem;
}

.features__panel-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.features__panel-item {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    background: var(--light-gray);
    padding: 1.5rem;
    border-radius: var(--radius-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

.features__panel-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.features__panel-num {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ie-red);
    line-height: 1;
    flex-shrink: 0;
}

.features__panel-item strong {
    display: block;
    color: var(--navy);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.features__panel-item p {
    color: var(--steel);
    font-size: 0.9375rem;
    line-height: 1.5;
    font-style: italic;
}

/* Interactive Zones */
.features__zones-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.features__zone-card {
    background: var(--white);
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: var(--radius-md);
    padding: 2rem;
    border-left: 4px solid transparent;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

.features__zone-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.features__zone-card--red {
    border-left-color: var(--ie-red);
}

.features__zone-card--gold {
    border-left-color: var(--gold);
}

.features__zone-card--navy {
    border-left-color: var(--navy);
}

.features__zone-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--red-light);
    border-radius: var(--radius-sm);
    margin-bottom: 1.25rem;
}

.features__zone-card--gold .features__zone-icon {
    background: #fdf8ed;
}

.features__zone-card--navy .features__zone-icon {
    background: #e8eaf0;
}

.features__zone-card h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--navy);
    margin-bottom: 0.75rem;
}

.features__zone-card p {
    color: var(--steel);
    font-size: 0.9375rem;
    line-height: 1.7;
}

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

/* ============================================
   SECTION 10: FOOTER
   ============================================ */
.footer {
    background: var(--navy);
    padding: 0;
}

.footer__accent {
    height: 3px;
    background: var(--ie-red);
}

.footer__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding: 3rem 0 1.5rem;
    text-align: center;
}

.footer__logos {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.footer__logo {
    height: 60px;
    width: auto;
    opacity: 0.9;
}

.footer__logo--ie {
    height: 40px;
}

.footer__logo-fallback {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--white);
    font-size: 1rem;
}

.footer__tagline {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    color: rgba(255,255,255,0.7);
    font-style: italic;
}

.footer__contact {
    margin-top: 1rem;
}

.footer__contact p {
    color: rgba(255,255,255,0.5);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.footer__contact a {
    display: block;
    color: var(--ie-red);
    font-size: 0.9375rem;
    transition: color var(--transition);
    margin-bottom: 0.25rem;
}

.footer__contact a:hover {
    color: #f06060;
}

.footer__social {
    display: flex;
    gap: 1rem;
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.7);
    transition: background var(--transition), color var(--transition);
}

.footer__social-link:hover {
    background: var(--ie-red);
    color: var(--white);
}

.footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 1.5rem 0;
    text-align: center;
}

.footer__bottom p {
    color: rgba(255,255,255,0.4);
    font-size: 0.8125rem;
}

@media (min-width: 768px) {
    .footer__content {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
        text-align: left;
    }

    .footer__info {
        flex: 1;
    }
}

/* ============================================
   UTILITY & RESPONSIVE ADJUSTMENTS
   ============================================ */

/* Small phones */
@media (max-width: 480px) {
    .hero-card {
        border-radius: var(--radius-md);
        padding: 1.25rem;
    }

    .hero-card__logo {
        width: 150px;
    }

    .about__highlights {
        gap: 0.75rem;
    }

    .countdown-strip {
        margin-top: 1rem;
        padding: 0 0.75rem;
    }

    .countdown-strip__card {
        padding: 1.5rem 0.75rem;
        border-radius: var(--radius-md);
    }

    .countdown {
        gap: 0.25rem;
    }

    .countdown__block {
        padding: 0.5rem 0.375rem;
        width: 56px;
        flex: none;
    }

    .countdown__number {
        font-size: 1.75rem;
    }

    .countdown__separator {
        font-size: 1.125rem;
        margin-bottom: 0.5rem;
    }

    .countdown-strip__cta {
        width: 100%;
        justify-content: center;
    }
}

/* Larger screens */
@media (min-width: 1200px) {
    :root {
        --container-padding: 2rem;
    }

    .about,
    .why,
    .pillars,
    .register,
    .venue,
    .features {
        padding: 6rem 0;
    }

    .keynote {
        padding: 7rem 0;
    }
}

/* Focus styles for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 2px solid var(--ie-red);
    outline-offset: 2px;
}

/* Skip to main content (screen readers) */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border-width: 0;
}

/* ============================================
   REGISTRATIONS CLOSED — State Styles
   ============================================ */

/* Section background */
.register--closed {
    background: var(--light-gray);
}

/* Centered white card */
.register__closed-card {
    max-width: 680px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 3rem 2rem;
    box-shadow: var(--shadow-md);
    text-align: center;
}

/* Lock icon circle */
.register__closed-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-gray);
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    color: var(--steel);
}

/* Body text */
.register__closed-text {
    color: var(--steel);
    font-size: 1.0625rem;
    line-height: 1.7;
    max-width: 520px;
    margin: 0 auto 2rem;
}

.register__closed-text strong {
    color: var(--navy);
}

/* Detail cards (date/time/venue) — reuse confirmation card styles */
.register__closed-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

@media (min-width: 600px) {
    .register__closed-details {
        flex-direction: row;
    }

    .register__closed-details .register__confirmation-card {
        flex: 1;
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
        padding: 1.25rem;
    }
}

/* Contact section */
.register__closed-contact {
    border-top: 1px solid rgba(0,0,0,0.06);
    padding-top: 1.5rem;
}

.register__closed-contact p {
    color: var(--steel);
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
}

.register__closed-contact a {
    display: block;
    color: var(--ie-red);
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    transition: color var(--transition);
}

.register__closed-contact a:hover {
    text-decoration: underline;
}

/* Nav CTA — muted closed state */
.nav__btn--closed {
    background: var(--steel) !important;
    cursor: default;
    pointer-events: none;
    opacity: 0.7;
    font-size: 0.8125rem;
}

.nav__btn--closed:hover {
    background: var(--steel) !important;
    transform: none !important;
    box-shadow: none !important;
}

/* Countdown CTA — muted closed state */
.countdown-strip__cta--closed {
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.5);
    cursor: default;
    pointer-events: none;
    box-shadow: none;
    animation: none;
}

.countdown-strip__cta--closed:hover {
    background: rgba(255,255,255,0.1);
    transform: none;
    box-shadow: none;
}

/* Hero badge — gray closed variant */
.hero-card__badge--closed {
    background: var(--steel);
    color: var(--white);
}