/* =====================================================
   spark imagination
   style.css
===================================================== */

/* ---------- Reset ---------- */

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
}

body{

    font-family:'Inter',sans-serif;

    background:#F7F4EF;

    color:#1E1E1E;

    overflow-x:hidden;

    line-height:1.6;

}

/* ---------- Variables ---------- */

:root{

    --background:#F7F4EF;

    --text:#202020;

    --accent:#D9B36A;

    --white:#ffffff;

    --max-width:1200px;

    --radius:28px;

    --shadow:0 20px 60px rgba(0,0,0,.08);

}

/* ---------- Typography ---------- */

h1{

    font-family:'Playfair Display',serif;

    font-size:clamp(2.8rem,6vw,5.6rem);

    line-height:1.05;

    margin-bottom:30px;

    font-weight:600;

}

h2{

    font-family:'Playfair Display',serif;

    font-size:clamp(2rem,5vw,3.8rem);

    line-height:1.15;

    margin-bottom:25px;

}

h3{

    font-size:1.3rem;

    margin-bottom:15px;

}

p{

    font-size:1.15rem;

    color:#555;

}

/* ---------- Layout ---------- */

.container{

    width:min(92%,var(--max-width));

    margin:auto;

}

section{

    padding:140px 0;

}

/* ---------- Background ---------- */

.background-gradient{

    position:fixed;

    inset:0;

    background:
    radial-gradient(circle at top,#ffffff 0%,#F7F4EF 70%);

    z-index:-2;

}

.noise{

    position:fixed;

    inset:0;

    opacity:.03;

    pointer-events:none;

    background-image:url("assets/noise.png");

    z-index:-1;

}

/* ---------- Header ---------- */

.header{

    position:fixed;

    top:0;

    width:100%;

    padding:28px 40px;

    display:flex;

    justify-content:center;

    z-index:999;

    backdrop-filter:blur(12px);

}

.logo{

    display:flex;

    align-items:center;

    gap:12px;

    font-weight:600;

}

.spark{

    width:12px;

    height:12px;

    border-radius:50%;

    background:var(--accent);

    animation:pulse 4s infinite;

}

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

.hero{

    min-height:100vh;

    display:flex;

    align-items:center;

    justify-content:center;

    position:relative;

    overflow:hidden;

    text-align:center;

}

.hero-image{

    position:absolute;

    inset:0;

}

.hero-image img{

    width:100%;

    height:100%;

    object-fit:cover;

    animation:slowZoom 18s linear infinite;

}

.hero-overlay{

    position:absolute;

    inset:0;

    background:linear-gradient(

    rgba(0,0,0,.25),

    rgba(0,0,0,.45)

    );

}

.hero-content{

    position:relative;

    z-index:3;

    color:white;

    width:min(90%,900px);

}

.hero-content p{

    color:white;

}

.eyebrow{

    letter-spacing:3px;

    text-transform:uppercase;

    opacity:.85;

    margin-bottom:20px;

    font-size:.9rem;

}

.hero-text{

    font-size:1.3rem;

    margin-top:20px;

}

/* ---------- Buttons ---------- */

.primary-btn{

    margin-top:45px;

    padding:18px 42px;

    border:none;

    border-radius:999px;

    background:var(--white);

    color:#111;

    cursor:pointer;

    font-size:1rem;

    transition:.35s;

    box-shadow:var(--shadow);

}

.primary-btn:hover{

    transform:translateY(-4px);

}

.secondary-btn{

    padding:16px 34px;

    border-radius:999px;

    border:1px solid #ddd;

    background:white;

    cursor:pointer;

}

/* ---------- Scroll Indicator ---------- */

.scroll-indicator{

    position:absolute;

    bottom:40px;

    left:50%;

    transform:translateX(-50%);

}

.scroll-indicator span{

    display:block;

    width:2px;

    height:60px;

    background:white;

    opacity:.6;

    animation:scroll 2s infinite;

}

/* ---------- Fade Sections ---------- */

.fade-section{

    opacity:0;

    transform:translateY(60px);

    transition:all .8s ease;

}

.fade-section.visible{

    opacity:1;

    transform:translateY(0);

}

/* ---------- Question Card ---------- */

.question-card{

    background:white;

    width:min(90%,760px);

    margin:auto;

    border-radius:var(--radius);

    padding:60px;

    box-shadow:var(--shadow);

}

.question-card textarea{

    width:100%;

    margin-top:30px;

    padding:20px;

    border-radius:20px;

    border:1px solid #ddd;

    resize:none;

    font-size:1rem;

    font-family:inherit;

    min-height:180px;

}

.question-actions{

    display:flex;

    justify-content:space-between;

    margin-top:35px;

}

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

@keyframes pulse{

    0%{

        transform:scale(1);

    }

    50%{

        transform:scale(1.35);

    }

    100%{

        transform:scale(1);

    }

}

@keyframes slowZoom{

    from{

        transform:scale(1);

    }

    to{

        transform:scale(1.08);

    }

}

@keyframes scroll{

    0%{

        opacity:0;

        transform:translateY(-10px);

    }

    50%{

        opacity:1;

    }

    100%{

        opacity:0;

        transform:translateY(18px);

    }

}

/* =====================================================
   STORY SECTIONS
===================================================== */

.story{

    padding:180px 0;

}

.story-grid{

    width:min(92%,1200px);

    margin:auto;

    display:grid;

    grid-template-columns:1fr 1fr;

    gap:80px;

    align-items:center;

}

.story.reverse .story-grid{

    direction:rtl;

}

.story.reverse .story-copy{

    direction:ltr;

}

.story-image img{

    width:100%;

    border-radius:32px;

    display:block;

    box-shadow:var(--shadow);

}

.chapter{

    display:inline-block;

    margin-bottom:20px;

    font-size:.9rem;

    letter-spacing:2px;

    text-transform:uppercase;

    color:var(--accent);

}

.story-copy p{

    margin-top:25px;

    max-width:520px;

}

/* =====================================================
   STATEMENT
===================================================== */

.statement{

    text-align:center;

}

.statement p{

    margin-top:25px;

    font-size:1.4rem;

}

/* =====================================================
   HOW IT WORKS
===================================================== */

.how-it-works{

    text-align:center;

}

.steps{

    margin-top:80px;

    display:grid;

    grid-template-columns:repeat(3,1fr);

    gap:35px;

}

.step{

    background:white;

    padding:40px;

    border-radius:28px;

    box-shadow:var(--shadow);

}

.step span{

    font-size:2rem;

    color:var(--accent);

    display:block;

    margin-bottom:20px;

}

/* =====================================================
   FUTURE GALLERY
===================================================== */

.future-gallery{

    width:min(92%,1200px);

    margin:auto;

    display:grid;

    grid-template-columns:repeat(3,1fr);

    gap:30px;

}

.future-card{

    background:white;

    border-radius:28px;

    overflow:hidden;

    box-shadow:var(--shadow);

    transition:.35s;

}

.future-card:hover{

    transform:translateY(-8px);

}

.future-card img{

    width:100%;

    height:420px;

    object-fit:cover;

    display:block;

}

.future-card p{

    padding:25px;

    font-style:italic;

}

/* =====================================================
   EXPERIMENT INTRO
===================================================== */

.experiment-intro{

    text-align:center;

}

.experiment-intro p{

    max-width:700px;

    margin:30px auto 0;

}

/* =====================================================
   PROGRESS BAR
===================================================== */

.progress-container{

    width:min(90%,700px);

    margin:0 auto 40px;

}

.progress-bar{

    width:100%;

    height:8px;

    background:#E8E3DA;

    border-radius:999px;

    overflow:hidden;

}

.progress-fill{

    width:0%;

    height:100%;

    background:var(--accent);

    transition:.35s ease;

}

.progress-text{

    display:block;

    margin-top:12px;

    color:#777;

    font-size:.9rem;

}

/* =====================================================
   UPLOAD SECTION
===================================================== */

.upload-container{

    text-align:center;

}

.upload-grid{

    margin-top:60px;

    display:grid;

    grid-template-columns:repeat(3,1fr);

    gap:30px;

}

.upload-card{

    background:white;

    padding:30px;

    border-radius:28px;

    box-shadow:var(--shadow);

}

.upload-card h3{

    font-size:2rem;

    color:var(--accent);

}

.upload-card h4{

    margin-top:10px;

}

/* =====================================================
   UPLOAD BOX
===================================================== */

.upload-box{

    display:flex;

    align-items:center;

    justify-content:center;

    min-height:220px;

    border:2px dashed #D9D9D9;

    border-radius:24px;

    margin-top:25px;

    cursor:pointer;

    transition:.3s;

    overflow:hidden;

    position:relative;

}

.upload-box:hover{

    border-color:var(--accent);

}

.upload-box.dragging{

    border-color:var(--accent);

    transform:scale(1.02);

}

.upload-box.completed{

    border-color:var(--accent);

}

.upload-box input{

    display:none;

}

.upload-box span{

    color:#777;

    line-height:1.8;

}

.upload-card img{

    width:100%;

    margin-top:20px;

    border-radius:20px;

    display:none;

}

.upload-card img.visible{

    display:block;

}

/* =====================================================
   EMAIL
===================================================== */

.email-box{

    max-width:600px;

    margin:80px auto 0;

}

.email-box input{

    width:100%;

    padding:18px 22px;

    border-radius:18px;

    border:1px solid #DDD;

    margin-top:20px;

    font-size:1rem;

}

/* =====================================================
   CONSENT
===================================================== */

.consent{

    max-width:700px;

    margin:40px auto;

    text-align:left;

}

.consent label{

    display:flex;

    gap:12px;

    align-items:flex-start;

}

.consent a{

    color:var(--accent);

    text-decoration:none;

}

/* =====================================================
   THANK YOU
===================================================== */

.thank-you-wrapper{

    min-height:80vh;

    display:flex;

    flex-direction:column;

    align-items:center;

    justify-content:center;

    text-align:center;

    width:min(90%,700px);

    margin:auto;

}

.spark-large{

    width:80px;

    height:80px;

    border-radius:50%;

    background:var(--accent);

    margin-bottom:40px;

    animation:pulse 3s infinite;

}

.small{

    margin-top:20px;

    font-size:.95rem;

}

/* =====================================================
   FOOTER
===================================================== */

footer{

    padding:80px 20px;

    text-align:center;

    border-top:1px solid #EAEAEA;

}

.footer-logo{

    font-family:'Playfair Display',serif;

    font-size:1.5rem;

    margin-bottom:15px;

}

footer nav{

    display:flex;

    justify-content:center;

    gap:25px;

    margin:30px 0;

}

footer nav a{

    color:#666;

    text-decoration:none;

}

/* =====================================================
   UTILITIES
===================================================== */

.hidden{

    display:none !important;

}

.fade-in{

    animation:fadeIn .35s ease;

}

.fade-out{

    animation:fadeOut .25s ease;

}

@keyframes fadeIn{

    from{

        opacity:0;

        transform:translateY(12px);

    }

    to{

        opacity:1;

        transform:translateY(0);

    }

}

@keyframes fadeOut{

    from{

        opacity:1;

    }

    to{

        opacity:0;

    }

}

/* =====================================================
   RESPONSIVE + POLISH
   Part 3
===================================================== */

/* ---------- Better Selection ---------- */

::selection{

    background:rgba(217,179,106,.25);

}

/* ---------- Better Focus States ---------- */

button:focus,
input:focus,
textarea:focus{

    outline:none;

    border-color:var(--accent);

    box-shadow:
    0 0 0 4px rgba(217,179,106,.15);

}

/* ---------- Smoother Transitions ---------- */

button,
a,
input,
textarea,
.upload-box,
.future-card,
.step{

    transition:
    transform .3s ease,
    box-shadow .3s ease,
    border-color .3s ease,
    opacity .3s ease;

}

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

.hero-content{

    animation:heroFade 1.4s ease;

}

@keyframes heroFade{

    from{

        opacity:0;

        transform:translateY(20px);

    }

    to{

        opacity:1;

        transform:translateY(0);

    }

}

/* ---------- Glass Header ---------- */

.header{

    background:rgba(247,244,239,.65);

    border-bottom:1px solid rgba(255,255,255,.2);

}

/* ---------- Story Images ---------- */

.story-image{

    overflow:hidden;

    border-radius:32px;

}

.story-image img{

    transition:transform 8s ease;

}

.story-image:hover img{

    transform:scale(1.05);

}

/* ---------- Future Cards ---------- */

.future-card{

    position:relative;

}

.future-card::after{

    content:"";

    position:absolute;

    inset:0;

    background:linear-gradient(
        transparent,
        rgba(0,0,0,.04)
    );

    pointer-events:none;

}

/* ---------- Upload Success State ---------- */

.upload-box.completed{

    background:
    rgba(217,179,106,.08);

}

/* ---------- Textarea ---------- */

textarea{

    line-height:1.8;

}

textarea::placeholder{

    color:#AAA;

}

/* ---------- Large CTA ---------- */

.primary-btn.large{

    padding:22px 56px;

    font-size:1.1rem;

}

/* ---------- Smooth Question Card ---------- */

.question-card{

    transition:
    transform .35s ease,
    opacity .35s ease;

}

/* ---------- Slight Lift ---------- */

.step:hover,
.upload-card:hover{

    transform:translateY(-6px);

}

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

footer small{

    color:#999;

}

/* =====================================================
   TABLET
===================================================== */

@media (max-width: 1100px){

    .story-grid{

        gap:50px;

    }

    .future-card img{

        height:320px;

    }

}

/* =====================================================
   MOBILE
===================================================== */

@media (max-width: 768px){

    section{

        padding:90px 0;

    }

    .header{

        padding:18px 20px;

    }

    .hero{

        min-height:100svh;

    }

    .hero-content{

        width:92%;

    }

    .hero-text{

        font-size:1.1rem;

    }

    .story-grid{

        grid-template-columns:1fr;

        gap:40px;

    }

    .story.reverse .story-grid{

        direction:ltr;

    }

    .steps{

        grid-template-columns:1fr;

    }

    .future-gallery{

        grid-template-columns:1fr;

    }

    .upload-grid{

        grid-template-columns:1fr;

    }

    .question-card{

        padding:30px;

    }

    .question-actions{

        flex-direction:column;

        gap:15px;

    }

    .primary-btn,
    .secondary-btn{

        width:100%;

    }

    footer nav{

        flex-direction:column;

        gap:10px;

    }

}

/* =====================================================
   SMALL MOBILE
===================================================== */

@media (max-width: 480px){

    h1{

        font-size:2.6rem;

    }

    h2{

        font-size:2rem;

    }

    p{

        font-size:1rem;

    }

    .question-card{

        padding:24px;

    }

    .upload-card{

        padding:22px;

    }

    .future-card img{

        height:260px;

    }

}

/* =====================================================
   LARGE SCREENS
===================================================== */

@media (min-width: 1600px){

    .container{

        max-width:1400px;

    }

    .hero-content{

        max-width:1100px;

    }

}

/* =====================================================
   REDUCE MOTION
===================================================== */

@media (prefers-reduced-motion: reduce){

    *{

        animation:none !important;

        transition:none !important;

        scroll-behavior:auto !important;

    }

}