/* ============================================
   Landing Page — SyncUp
   ============================================ */

/* ---- Page Container ---- */

.landing {
    min-height: 100vh;
    overflow-x: hidden;
    background: var(--color-cream);
}

/* ---- Navigation ---- */

.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-5) var(--space-8);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background var(--duration-normal) var(--ease-out),
                box-shadow var(--duration-normal) var(--ease-out);
}

.landing-nav--scrolled {
    background: rgba(250, 248, 245, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 var(--color-border);
}

.landing-nav__logo {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-2xl);
    color: var(--color-primary);
    letter-spacing: -0.04em;
    text-decoration: none;
}

.landing-nav__logo span {
    color: var(--color-accent);
}

.landing-nav__links {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.landing-nav__link {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: color var(--duration-fast) var(--ease-out),
                background var(--duration-fast) var(--ease-out);
}

.landing-nav__link:hover {
    color: var(--color-text);
    background: var(--color-slate-100);
}

.landing-nav__cta {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-white);
    background: var(--color-primary);
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-md);
    transition: background var(--duration-fast) var(--ease-out),
                transform var(--duration-fast) var(--ease-spring);
}

.landing-nav__cta:hover {
    background: var(--color-primary-light);
    color: var(--color-white);
    transform: translateY(-1px);
}

/* ---- Hero ---- */

.hero {
    position: relative;
    padding: 10rem var(--space-8) var(--space-20);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.hero__bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero__bg::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 70vw;
    height: 70vw;
    max-width: 900px;
    max-height: 900px;
    background: radial-gradient(circle, var(--color-coral-100) 0%, transparent 70%);
    opacity: 0.6;
}

.hero__bg::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -15%;
    width: 50vw;
    height: 50vw;
    max-width: 700px;
    max-height: 700px;
    background: radial-gradient(circle, var(--color-amber-100) 0%, transparent 70%);
    opacity: 0.5;
}

.hero__grid-pattern {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--color-slate-200) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-slate-200) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.3;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero__content {
    position: relative;
    max-width: 800px;
    text-align: center;
}

.hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent);
    background: var(--color-accent-light);
    padding: 0.375rem 1rem;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
    animation: hero-fadeUp 0.6s var(--ease-out) 0.1s both;
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(var(--text-4xl), 6vw, var(--text-6xl));
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: var(--space-6);
    animation: hero-fadeUp 0.6s var(--ease-out) 0.2s both;
}

.hero__title em {
    font-style: normal;
    position: relative;
    color: var(--color-accent);
}

.hero__title em::after {
    content: '';
    position: absolute;
    left: -2%;
    right: -2%;
    bottom: 0.05em;
    height: 0.12em;
    background: var(--color-coral-300);
    border-radius: 2px;
    opacity: 0.5;
}

.hero__description {
    font-size: clamp(var(--text-lg), 2.2vw, var(--text-xl));
    color: var(--color-text-muted);
    max-width: 560px;
    margin: 0 auto var(--space-10);
    line-height: 1.6;
    animation: hero-fadeUp 0.6s var(--ease-out) 0.3s both;
}

.hero__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    animation: hero-fadeUp 0.6s var(--ease-out) 0.4s both;
}

.hero__btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-white);
    background: var(--color-accent);
    padding: 1rem 2.25rem;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition:
        background var(--duration-fast) var(--ease-out),
        transform var(--duration-fast) var(--ease-spring),
        box-shadow var(--duration-normal) var(--ease-out);
    box-shadow: 0 4px 16px rgba(239, 99, 81, 0.3);
}

.hero__btn-primary:hover {
    background: var(--color-accent-hover);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(239, 99, 81, 0.35);
}

.hero__btn-primary:active {
    transform: translateY(0);
}

.hero__btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text);
    background: var(--color-surface);
    padding: 1rem 2.25rem;
    border-radius: var(--radius-lg);
    border: 1.5px solid var(--color-border);
    cursor: pointer;
    text-decoration: none;
    transition:
        background var(--duration-fast) var(--ease-out),
        transform var(--duration-fast) var(--ease-spring),
        box-shadow var(--duration-normal) var(--ease-out);
}

.hero__btn-secondary:hover {
    background: var(--color-slate-50);
    color: var(--color-text);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ---- Floating Cards (hero decoration) ---- */

.hero__cards {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero__card-float {
    position: absolute;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border-subtle);
    padding: var(--space-4) var(--space-5);
    opacity: 0;
    animation: card-float 0.8s var(--ease-out) both;
}

.hero__card-float:nth-child(1) {
    top: 22%;
    left: 5%;
    transform: rotate(-6deg);
    animation-delay: 0.7s;
}

.hero__card-float:nth-child(2) {
    top: 18%;
    right: 4%;
    transform: rotate(4deg);
    animation-delay: 0.9s;
}

.hero__card-float:nth-child(3) {
    bottom: 18%;
    left: 8%;
    transform: rotate(3deg);
    animation-delay: 1.1s;
}

.hero__card-float:nth-child(4) {
    bottom: 22%;
    right: 7%;
    transform: rotate(-4deg);
    animation-delay: 1.3s;
}

.hero__card-date {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-1);
}

.hero__card-time {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
}

.hero__card-votes {
    display: flex;
    gap: var(--space-1);
}

.hero__card-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.hero__card-dot--yes { background: var(--color-teal-500); }
.hero__card-dot--maybe { background: var(--color-amber-400); }
.hero__card-dot--no { background: var(--color-slate-300); }

/* ---- How It Works ---- */

.how-it-works {
    position: relative;
    padding: var(--space-24) var(--space-8);
    background: var(--color-surface);
    border-top: 1px solid var(--color-border-subtle);
}

.how-it-works__inner {
    max-width: 1000px;
    margin: 0 auto;
}

.how-it-works__label {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    text-align: center;
    margin-bottom: var(--space-3);
}

.how-it-works__title {
    font-family: var(--font-display);
    font-size: clamp(var(--text-3xl), 4vw, var(--text-4xl));
    font-weight: 800;
    color: var(--color-primary);
    text-align: center;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-16);
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    counter-reset: step;
}

.step {
    text-align: center;
    padding: var(--space-8) var(--space-6);
    border-radius: var(--radius-xl);
    background: var(--color-cream);
    border: 1px solid var(--color-border-subtle);
    transition: transform var(--duration-normal) var(--ease-out),
                box-shadow var(--duration-normal) var(--ease-out);
}

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

.step__icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
    font-size: 1.75rem;
}

.step:nth-child(1) .step__icon {
    background: var(--color-accent-light);
    color: var(--color-accent);
}

.step:nth-child(2) .step__icon {
    background: var(--color-amber-100);
    color: var(--color-amber-500);
}

.step:nth-child(3) .step__icon {
    background: var(--color-teal-100);
    color: var(--color-teal-600);
}

.step__number {
    font-family: var(--font-display);
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--color-text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-2);
}

.step__title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-3);
}

.step__text {
    font-size: var(--text-base);
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ---- Connector arrows between steps ---- */

.steps__connector {
    display: none;
}

/* ---- Footer ---- */

.landing-footer {
    border-top: 1px solid var(--color-border-subtle);
    padding: var(--space-8) var(--space-8);
    text-align: center;
}

.landing-footer__text {
    font-size: var(--text-sm);
    color: var(--color-text-subtle);
}

.landing-footer__text a {
    color: var(--color-text-subtle);
    transition: color var(--duration-fast) var(--ease-out);
}

.landing-footer__text a:hover {
    color: var(--color-accent);
}

/* ---- Animations ---- */

@keyframes hero-fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes card-float {
    from {
        opacity: 0;
        transform: translateY(20px) rotate(var(--rotate, 0deg));
    }
    to {
        opacity: 0.85;
        transform: translateY(0) rotate(var(--rotate, 0deg));
    }
}

/* ---- Responsive ---- */

@media (max-width: 900px) {
    .hero {
        padding: 8rem var(--space-6) var(--space-16);
        min-height: auto;
    }

    .hero__cards {
        display: none;
    }

    .steps {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }

    .how-it-works {
        padding: var(--space-16) var(--space-6);
    }
}

@media (max-width: 600px) {
    .landing-nav {
        padding: var(--space-4) var(--space-5);
    }

    .landing-nav__link {
        display: none;
    }

    .hero {
        padding: 7rem var(--space-5) var(--space-12);
    }

    .hero__actions {
        flex-direction: column;
    }

    .hero__btn-primary,
    .hero__btn-secondary {
        width: 100%;
        justify-content: center;
    }
}