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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;

    background: #f5f7f1;

    color: #172018;

    transition: 0.3s;
}


/* NAV */

nav {
    height: 72px;

    display: flex;

    align-items: center;

    justify-content: space-between;

    padding: 0 8%;

    position: sticky;

    top: 0;

    z-index: 100;

    background: rgba(245,247,241,0.95);

    backdrop-filter: blur(12px);

    border-bottom: 1px solid #dde4d7;
}

.logo {
    font-size: 22px;

    font-weight: 800;
}

.nav-links {
    display: flex;

    gap: 30px;
}

.nav-links a {
    text-decoration: none;

    color: inherit;

    font-weight: 600;
}

.theme-btn {
    border: none;

    background: #e4ebdf;

    width: 40px;

    height: 40px;

    border-radius: 50%;

    cursor: pointer;

    font-size: 18px;
}


/* HERO */

.hero {
    min-height: 90vh;

    padding: 100px 10%;

    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 70px;
}

.hero-left {
    max-width: 680px;
}

.badge {
    display: inline-block;

    background: #e2efdf;

    color: #34713d;

    padding: 8px 14px;

    border-radius: 30px;

    font-size: 12px;

    font-weight: 800;

    margin-bottom: 20px;
}

.hero h1 {
    font-size: clamp(52px, 7vw, 92px);

    line-height: .95;

    letter-spacing: -5px;

    margin-bottom: 30px;
}

.hero h1 span {
    color: #43874b;
}

.hero-left > p {
    font-size: 19px;

    line-height: 1.7;

    color: #647064;

    margin-bottom: 30px;
}

.primary-btn {
    border: none;

    background: #24532b;

    color: white;

    padding: 16px 25px;

    border-radius: 12px;

    font-size: 15px;

    font-weight: 800;

    cursor: pointer;

    transition: .2s;
}

.primary-btn:hover {
    transform: translateY(-3px);

    background: #34713d;
}

.primary-btn:disabled {
    opacity: .6;

    cursor: not-allowed;
}

.privacy {
    margin-top: 20px;

    color: #7a8278;

    font-size: 13px;
}


/* HERO CARD */

.hero-card {
    width: 360px;

    background: white;

    padding: 35px;

    border-radius: 30px;

    box-shadow: 0 25px 70px rgba(30,60,30,.12);

    transform: rotate(2deg);
}

.card-icon {
    font-size: 55px;

    margin-bottom: 20px;
}

.small-label {
    font-size: 11px;

    font-weight: 800;

    color: #7b8478;
}

.hero-card h3 {
    font-size: 28px;

    margin: 10px 0;
}

.hero-card p {
    color: #687268;

    line-height: 1.6;

    margin-bottom: 25px;
}

.progress {
    height: 8px;

    background: #e5eadf;

    border-radius: 20px;

    overflow: hidden;

    margin-bottom: 15px;
}

.progress div {
    width: 45%;

    height: 100%;

    background: #4b8d52;
}


/* SECTIONS */

.section {
    padding: 100px 10%;
}

.section-header {
    text-align: center;

    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 45px;

    margin-bottom: 12px;
}

.section-header p {
    color: #6d766a;
}


/* BUILDER */

.builder {
    max-width: 750px;

    margin: auto;

    padding: 40px;

    background: white;

    border-radius: 28px;

    box-shadow: 0 20px 60px rgba(30,60,30,.08);
}

.field {
    margin-bottom: 30px;
}

.field label {
    display: block;

    font-size: 11px;

    font-weight: 800;

    color: #737c70;

    letter-spacing: 1px;

    margin-bottom: 12px;
}

.choice-row {
    display: flex;

    gap: 10px;

    flex-wrap: wrap;
}

.choice {
    border: 1px solid #dce4d8;

    background: white;

    padding: 13px 18px;

    border-radius: 10px;

    cursor: pointer;

    font-size: 14px;
}

.choice.active {
    background: #e2efdf;

    color: #2d6735;

    border-color: #5b9861;

    font-weight: 700;
}

textarea {
    width: 100%;

    height: 100px;

    resize: vertical;

    border: 1px solid #dce4d8;

    border-radius: 12px;

    padding: 15px;

    font-family: inherit;

    font-size: 14px;

    outline: none;
}

textarea:focus {
    border-color: #55935c;
}

.full {
    width: 100%;
}


/* MISSION */

.hidden {
    display: none !important;
}

.mission-card {
    max-width: 750px;

    margin: auto;

    background: white;

    padding: 50px;

    border-radius: 30px;

    box-shadow: 0 20px 70px rgba(30,60,30,.1);
}

.ai-label {
    display: inline-block;

    background: #e5f0e1;

    color: #34703c;

    padding: 8px 13px;

    border-radius: 30px;

    font-size: 12px;

    font-weight: 800;

    margin-bottom: 20px;
}

.mission-card h2 {
    font-size: 43px;

    margin-bottom: 15px;
}

#missionIntro {
    color: #6a7368;

    line-height: 1.7;

    margin-bottom: 25px;
}

.task {
    background: #f1f6ed;

    padding: 18px;

    border-radius: 12px;

    margin-bottom: 10px;

    font-weight: 600;
}

.mission-info {
    display: flex;

    justify-content: space-between;

    padding: 20px 0;

    margin: 20px 0;

    border-top: 1px solid #e5e9e1;

    border-bottom: 1px solid #e5e9e1;

    color: #687267;
}


/* ACTIVE */

.active-mission {
    max-width: 650px;

    margin: auto;

    padding: 70px 40px;

    text-align: center;

    border-radius: 35px;

    background: #204727;

    color: white;
}

.active-mission .ai-label {
    background: rgba(255,255,255,.15);

    color: white;
}

#timer {
    font-size: 80px;

    font-weight: 800;

    margin: 20px 0;
}

.active-mission h2 {
    font-size: 35px;

    margin-bottom: 10px;
}

.active-mission p {
    color: #d1ddd0;

    margin-bottom: 25px;
}

.current-task {
    background: rgba(255,255,255,.1);

    padding: 20px;

    border-radius: 14px;

    margin-bottom: 30px;
}


/* UPLOAD */

.upload-card {
    max-width: 700px;

    margin: auto;

    padding: 40px;

    background: white;

    border-radius: 25px;

    text-align: center;

    box-shadow: 0 15px 50px rgba(30,60,30,.08);
}

#photoInput {
    width: 100%;

    padding: 15px;

    border: 1px dashed #aab7a7;

    border-radius: 12px;

    margin-bottom: 20px;
}

#imagePreview img {
    max-width: 100%;

    max-height: 350px;

    border-radius: 15px;

    margin-bottom: 20px;
}

.analysis-result {
    margin-top: 25px;

    text-align: left;

    line-height: 1.7;
}


/* STATS */

.stats-grid {
    max-width: 850px;

    margin: auto;

    display: grid;

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

    gap: 20px;
}

.stat-card {
    background: white;

    padding: 30px;

    text-align: center;

    border-radius: 22px;

    box-shadow: 0 10px 30px rgba(30,60,30,.06);
}

.stat-card span {
    font-size: 28px;
}

.stat-card strong {
    display: block;

    font-size: 42px;

    margin: 8px;

    color: #397441;
}

.stat-card p {
    color: #788076;
}


/* JOURNAL */

.journal-list {
    max-width: 850px;

    margin: auto;
}

.journal-entry {
    background: white;

    padding: 25px;

    border-radius: 18px;

    margin-bottom: 12px;

    display: flex;

    justify-content: space-between;

    align-items: center;
}

.journal-entry h3 {
    margin-bottom: 5px;
}

.journal-entry p {
    color: #747d71;

    font-size: 13px;
}

.journal-xp {
    font-weight: 800;

    color: #3e7d46;
}


/* FOOTER */

footer {
    text-align: center;

    padding: 80px 20px;

    background: #1d3f22;

    color: white;
}

footer p {
    color: #c7d4c6;

    margin: 15px 0;
}

footer small {
    color: #8fa18e;
}


/* DARK MODE */

body.dark {
    background: #101610;

    color: #e9eee7;
}

body.dark nav {
    background: rgba(16,22,16,.95);

    border-color: #293229;
}

body.dark .hero-card,
body.dark .builder,
body.dark .mission-card,
body.dark .upload-card,
body.dark .stat-card,
body.dark .journal-entry {
    background: #1b241b;

    color: #e9eee7;
}

body.dark .choice {
    background: #1b241b;

    color: #e9eee7;

    border-color: #394439;
}

body.dark .choice.active {
    background: #29472d;
}

body.dark textarea {
    background: #1b241b;

    color: white;

    border-color: #394439;
}

body.dark .task {
    background: #263326;
}

body.dark .hero-left > p,
body.dark .section-header p,
body.dark #missionIntro,
body.dark .hero-card p {
    color: #aeb9aa;
}


/* MOBILE */

@media(max-width:800px) {

    nav {
        padding: 0 5%;
    }

    .nav-links {
        display: none;
    }

    .hero {
        flex-direction: column;

        text-align: center;

        padding: 70px 6%;
    }

    .hero-card {
        width: 100%;

        max-width: 360px;
    }

    .hero h1 {
        letter-spacing: -3px;
    }

    .section {
        padding: 70px 6%;
    }

    .builder,
    .mission-card {
        padding: 25px;
    }

    .section-header h2,
    .mission-card h2 {
        font-size: 35px;
    }

    .mission-info {
        flex-direction: column;

        gap: 10px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    #timer {
        font-size: 60px;
    }

}