/* =========================
   BASIC SETTINGS
========================= */

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


body {

    font-family: Arial, sans-serif;

    background: #f7fbf8;

    color: #19352b;

    line-height: 1.6;

}


/* =========================
   NAVIGATION
========================= */

header {

    width: 100%;

    min-height: 75px;

    padding: 15px 6%;

    background: white;

    display: flex;

    align-items: center;

    justify-content: space-between;

    border-bottom: 1px solid #e2eee7;

}


/* LOGO */

.logo {

    color: #176b48;

    font-size: 21px;

    font-weight: bold;

    white-space: nowrap;

}


/* MENU */

nav {

    display: flex;

    align-items: center;

    justify-content: flex-end;

    gap: 5px;

    flex-wrap: wrap;

}


nav a {

    text-decoration: none;

    color: #466057;

    font-size: 13px;

    padding: 8px 9px;

    border-radius: 8px;

    transition: 0.3s;

}


nav a:hover {

    background: #e6f5ec;

    color: #176b48;

}


/* =========================
   HERO SECTION
========================= */

.hero {

    min-height: 600px;

    padding: 80px 8%;

    display: grid;

    grid-template-columns: 1.4fr 0.6fr;

    gap: 70px;

    align-items: center;

    background:

        linear-gradient(
            135deg,
            #effaf3,
            #ffffff
        );

}


/* =========================
   LEFT SIDE
========================= */

.hero-text {

    max-width: 700px;

}


/* SMALL TITLE */

.small-title {

    color: #18804f;

    font-size: 13px;

    font-weight: bold;

    letter-spacing: 2px;

    margin-bottom: 15px;

}


/* MAIN TITLE */

.hero h1 {

    font-size: 62px;

    line-height: 1.05;

    margin-bottom: 25px;

    color: #17251f;

}


.hero h1 span {

    display: block;

    color: #1b8756;

}


/* DESCRIPTION */

.description {

    color: #607169;

    font-size: 18px;

    max-width: 650px;

    margin-bottom: 30px;

}


/* =========================
   BUTTONS
========================= */

.buttons {

    display: flex;

    gap: 12px;

    flex-wrap: wrap;

}


.btn {

    display: inline-block;

    padding: 13px 21px;

    border-radius: 10px;

    background: #176b48;

    color: white;

    text-decoration: none;

    font-weight: bold;

    transition: 0.3s;

}


.btn:hover {

    background: #0e5437;

    transform: translateY(-2px);

}


/* SECOND BUTTON */

.btn.second {

    background: white;

    color: #176b48;

    border: 1px solid #b9d8c6;

}


.btn.second:hover {

    background: #effaf3;

}


/* =========================
   RIGHT CARD
========================= */

.hero-card {

    background: white;

    padding: 38px 32px;

    border-radius: 25px;

    text-align: center;

    border: 1px solid #e1ece5;

    box-shadow:

        0 20px 50px
        rgba(20, 70, 45, 0.12);

}


/* PLANT */

.plant {

    font-size: 75px;

    margin-bottom: 10px;

}


/* CARD TITLE */

.hero-card h2 {

    font-size: 25px;

    margin-bottom: 12px;

    color: #19352b;

}


/* CARD TEXT */

.hero-card p {

    color: #64736c;

    font-size: 15px;

}


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

.progress {

    width: 100%;

    height: 12px;

    margin: 22px 0 10px;

    background: #e5eee9;

    border-radius: 20px;

    overflow: hidden;

}


/* GREEN PART */

.progress-fill {

    width: 65%;

    height: 100%;

    background: #36a76f;

    border-radius: 20px;

}


/* PROGRESS TEXT */

.progress-text {

    font-size: 13px !important;

}


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

footer {

    background: #173d2d;

    color: #dcebe2;

    padding: 25px 8%;

    display: flex;

    justify-content: space-between;

    font-size: 14px;

}


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

@media (max-width: 1000px) {


    header {

        flex-direction: column;

        gap: 15px;

    }


    nav {

        justify-content: center;

    }


    .hero {

        grid-template-columns: 1fr;

        padding: 65px 7%;

    }


    .hero-text {

        max-width: 800px;

    }


    .hero-card {

        max-width: 500px;

        width: 100%;

        margin: auto;

    }

}


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

@media (max-width: 650px) {


    header {

        padding: 18px 5%;

    }


    nav a {

        font-size: 12px;

        padding: 6px;

    }


    .hero {

        padding: 55px 5%;

    }


    .hero h1 {

        font-size: 43px;

    }


    .description {

        font-size: 16px;

    }


    .hero-card {

        padding: 30px 22px;

    }


    footer {

        display: block;

    }


    footer p + p {

        margin-top: 8px;

    }

}
/* =========================
   SKILLS SECTION
========================= */

.skills {

    padding: 75px 8%;

    background: #f7fbf8;

}


.section-title {

    text-align: center;

    margin-bottom: 40px;

}


.section-title h2 {

    font-size: 38px;

    margin-bottom: 10px;

}


.section-title p:last-child {

    color: #65756e;

}


/* =========================
   SKILL CARDS
========================= */

.cards {

    display: grid;

    grid-template-columns:
        repeat(4, 1fr);

    gap: 20px;

}


.card {

    background: white;

    border: 1px solid #e1ece5;

    border-radius: 18px;

    padding: 25px;

    text-decoration: none;

    color: #19352b;

    transition: 0.3s;

}


.card:hover {

    transform: translateY(-6px);

    box-shadow:
        0 15px 35px
        rgba(23, 61, 42, 0.1);

}


.icon {

    font-size: 35px;

    margin-bottom: 12px;

}


.card h3 {

    margin-bottom: 8px;

    font-size: 21px;

}


.card p {

    color: #64736c;

    font-size: 14px;

    margin-bottom: 16px;

}


.card strong {

    color: #18734b;

}


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

@media (max-width: 1000px) {

    .cards {

        grid-template-columns:
            repeat(2, 1fr);

    }

}


/* =========================
   SKILLS PHONE
========================= */

@media (max-width: 650px) {

    .skills {

        padding: 50px 5%;

    }


    .cards {

        grid-template-columns: 1fr;

    }


    .section-title h2 {

        font-size: 30px;

    }

}
/* =========================
   PURPOSE SECTION
========================= */

.purpose {

    background: #eaf7ef;

    padding: 65px 8%;

    display: grid;

    grid-template-columns: 1.5fr 1fr;

    gap: 50px;

    align-items: center;

}


.purpose h2 {

    font-size: 38px;

    line-height: 1.2;

    margin-bottom: 15px;

}


.purpose-text > p:last-child {

    color: #52665b;

    max-width: 600px;

}


/* =========================
   STAT BOXES
========================= */

.stats {

    display: flex;

    gap: 18px;

}


.stat-box {

    background: white;

    padding: 20px;

    border-radius: 16px;

    text-align: center;

    min-width: 100px;

}


.stat-box strong {

    display: block;

    color: #176b48;

    font-size: 28px;

}


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

footer {

    background: #173d2d;

    color: #dcebe2;

    padding: 30px 8%;

    display: flex;

    justify-content: space-between;

    font-size: 14px;

}


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

@media (max-width: 1000px) {

    .purpose {

        grid-template-columns: 1fr;

    }

}


@media (max-width: 650px) {

    .purpose {

        padding: 50px 5%;

    }


    .purpose h2 {

        font-size: 30px;

    }


    .stats {

        flex-wrap: wrap;

    }


    footer {

        display: block;

    }


    footer p + p {

        margin-top: 8px;

    }

}
/* =========================================================
   CHALLENGES SECTION
========================================================= */

.study-section {

    padding: 75px 8%;

    background: #f7fbf8;

}


/* CHALLENGE INTRO */

.study-section .section-title {

    text-align: center;

    margin-bottom: 40px;

}


.study-section .section-title h2 {

    font-size: 38px;

    color: #19352b;

    margin-bottom: 10px;

}


.study-section .section-title p {

    color: #65756e;

}


/* CHALLENGE CARDS */

.study-section .cards {

    display: grid;

    grid-template-columns:
        repeat(4, 1fr);

    gap: 20px;

}


.study-section .card {

    background: white;

    border: 1px solid #e1ece5;

    border-radius: 18px;

    padding: 25px;

    color: #19352b;

    transition: 0.3s;

}


.study-section .card:hover {

    transform: translateY(-6px);

    box-shadow:
        0 15px 35px
        rgba(23, 61, 42, 0.12);

}


.study-section .card h3 {

    color: #19352b;

    font-size: 21px;

    margin-bottom: 10px;

}


.study-section .card p {

    color: #64736c;

    font-size: 14px;

    margin-bottom: 18px;

}


/* CHALLENGE BUTTON */

.practice-btn {

    width: 100%;

    padding: 12px 18px;

    border: none;

    border-radius: 10px;

    background: #176b48;

    color: white;

    font-size: 14px;

    font-weight: bold;

    cursor: pointer;

    transition: 0.3s;

}


.practice-btn:hover {

    background: #0e5437;

    transform: translateY(-2px);

}


.practice-btn:disabled {

    background: #6aaa8b;

    cursor: not-allowed;

    transform: none;

}


/* =========================================================
   INTERACTIVE CHALLENGE PANEL
========================================================= */

#challengePanel {

    display: none;

    margin: 45px auto 0;

    max-width: 800px;

    padding: 35px;

    background: white;

    border: 1px solid #dceae2;

    border-radius: 20px;

    box-shadow:
        0 15px 40px
        rgba(23, 61, 42, 0.10);

}


#challengePanel.active {

    display: block;

}


#challengeTitle {

    color: #176b48;

    font-size: 30px;

    margin-bottom: 10px;

}


#challengeDescription {

    color: #64736c;

    margin-bottom: 25px;

}


/* CHALLENGE TASKS */

#challengeTasks {

    display: flex;

    flex-direction: column;

    gap: 12px;

}


.challenge-task {

    display: flex;

    align-items: flex-start;

    gap: 12px;

    padding: 15px;

    background: #f3faf6;

    border: 1px solid #dcece3;

    border-radius: 12px;

    cursor: pointer;

    color: #19352b;

    transition: 0.3s;

}


.challenge-task:hover {

    background: #eaf7ef;

}


.challenge-task input {

    width: 18px;

    height: 18px;

    margin-top: 3px;

    accent-color: #176b48;

    cursor: pointer;

}


.challenge-task span {

    flex: 1;

    font-size: 15px;

}


/* COMPLETION MESSAGE */

#challengeMessage {

    display: none;

    margin-top: 20px;

    padding: 14px;

    border-radius: 10px;

    background: #eaf7ef;

    color: #176b48;

    font-weight: bold;

}


/* PANEL BUTTONS */

#challengePanel button {

    margin-top: 20px;

    padding: 11px 18px;

    border: none;

    border-radius: 10px;

    background: #176b48;

    color: white;

    font-weight: bold;

    cursor: pointer;

    transition: 0.3s;

}


#challengePanel button:hover {

    background: #0e5437;

}


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

@media (max-width: 1000px) {

    .study-section .cards {

        grid-template-columns:
            repeat(2, 1fr);

    }

}


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

@media (max-width: 650px) {

    .study-section {

        padding: 50px 5%;

    }


    .study-section .section-title h2 {

        font-size: 30px;

    }


    .study-section .cards {

        grid-template-columns: 1fr;

    }


    #challengePanel {

        padding: 25px 20px;

    }


    #challengeTitle {

        font-size: 25px;

    }


    .challenge-task {

        padding: 13px;

    }

}


/* =========================================================
   DARK MODE
========================================================= */

body.dark-mode {

    background: #101814;

    color: #e5f2eb;

}


/* NAVIGATION */

body.dark-mode header {

    background: #16231d;

    border-bottom-color: #294238;

}


body.dark-mode nav a {

    color: #b8cec2;

}


body.dark-mode nav a:hover {

    background: #20382d;

    color: #7ed6a8;

}


/* CHALLENGES */

body.dark-mode .study-section {

    background: #101814;

}


body.dark-mode .study-section .section-title h2 {

    color: #e5f2eb;

}


body.dark-mode .study-section .section-title p {

    color: #a9bdb2;

}


body.dark-mode .study-section .card {

    background: #18251f;

    border-color: #2b4438;

    color: #e5f2eb;

}


body.dark-mode .study-section .card h3 {

    color: #e5f2eb;

}


body.dark-mode .study-section .card p {

    color: #a9bdb2;

}


/* BUTTONS */

body.dark-mode .practice-btn {

    background: #2f9b68;

    color: white;

}


body.dark-mode .practice-btn:hover {

    background: #3caf7a;

}


body.dark-mode .practice-btn:disabled {

    background: #496d5a;

}


/* CHALLENGE PANEL */

body.dark-mode #challengePanel {

    background: #18251f;

    border-color: #2b4438;

    box-shadow:
        0 15px 40px
        rgba(0, 0, 0, 0.3);

}


body.dark-mode #challengeTitle {

    color: #7ed6a8;

}


body.dark-mode #challengeDescription {

    color: #a9bdb2;

}


/* TASKS */

body.dark-mode .challenge-task {

    background: #1d3027;

    border-color: #315143;

    color: #e5f2eb;

}


body.dark-mode .challenge-task:hover {

    background: #244034;

}


body.dark-mode #challengeMessage {

    background: #20382d;

    color: #8fe0b1;

}


/* PANEL BUTTON */

body.dark-mode #challengePanel button {

    background: #2f9b68;

}


body.dark-mode #challengePanel button:hover {

    background: #3caf7a;

}
/* =========================================================
   DASHBOARD
========================================================= */

.dashboard-hero {

    padding: 70px 8%;

    background:
        linear-gradient(
            135deg,
            #effaf3,
            #ffffff
        );

    text-align: center;

}


.dashboard-hero h1 {

    font-size: 48px;

    color: #17251f;

    margin-bottom: 15px;

}


.dashboard-hero p:last-child {

    max-width: 700px;

    margin: auto;

    color: #607169;

    font-size: 17px;

}


/* =========================================================
   DASHBOARD SECTIONS
========================================================= */

.dashboard-section {

    padding: 70px 8%;

    background: #f7fbf8;

}


.dashboard-section:nth-of-type(even) {

    background: white;

}


/* =========================================================
   DASHBOARD STAT CARDS
========================================================= */

.dashboard-stats {

    display: grid;

    grid-template-columns:
        repeat(4, 1fr);

    gap: 20px;

}


.dashboard-stat {

    background: white;

    border: 1px solid #e1ece5;

    border-radius: 18px;

    padding: 28px 20px;

    text-align: center;

    transition: 0.3s;

}


.dashboard-stat:hover {

    transform: translateY(-5px);

    box-shadow:
        0 15px 35px
        rgba(23, 61, 42, 0.10);

}


.dashboard-stat h3 {

    color: #607169;

    font-size: 15px;

    margin-bottom: 10px;

}


.dashboard-stat strong {

    display: block;

    color: #176b48;

    font-size: 34px;

    margin-bottom: 5px;

}


.dashboard-stat p {

    color: #65756e;

    font-size: 13px;

}


/* =========================================================
   LEARNING PROGRESS
========================================================= */

.learning-progress {

    max-width: 850px;

    margin: auto;

}


.progress-item {

    margin-bottom: 25px;

}


.progress-heading {

    display: flex;

    justify-content: space-between;

    align-items: center;

    margin-bottom: 8px;

}


.progress-heading h3 {

    color: #19352b;

    font-size: 17px;

}


.progress-heading span {

    color: #176b48;

    font-weight: bold;

    font-size: 14px;

}


.dashboard-progress {

    width: 100%;

    height: 12px;

    background: #e5eee9;

    border-radius: 20px;

    overflow: hidden;

}


.dashboard-progress-fill {

    width: 0%;

    height: 100%;

    background: #36a76f;

    border-radius: 20px;

    transition: width 0.5s ease;

}


/* =========================================================
   ACTIVITY BOX
========================================================= */

.activity-box {

    max-width: 850px;

    margin: auto;

    padding: 30px;

    background: white;

    border: 1px solid #e1ece5;

    border-radius: 18px;

    text-align: center;

}


.activity-box p {

    color: #64736c;

    margin-bottom: 8px;

}


.activity-box p:first-child {

    color: #176b48;

    font-weight: bold;

}


/* =========================================================
   DASHBOARD MOTIVATION
========================================================= */

.dashboard-motivation {

    display: flex;

    justify-content: space-between;

    align-items: center;

    gap: 30px;

}


/* =========================================================
   CONTACT
========================================================= */

.contact {

    padding: 70px 8%;

    background: #f7fbf8;

}


.contact-info {

    max-width: 600px;

    margin: auto;

    background: white;

    border: 1px solid #e1ece5;

    border-radius: 18px;

    padding: 25px;

    text-align: center;

}


.contact-info p {

    color: #52665b;

    margin-bottom: 8px;

}


.contact-info a {

    color: #176b48;

    text-decoration: none;

    font-weight: bold;

}


.contact-info a:hover {

    text-decoration: underline;

}


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

@media (max-width: 1000px) {

    .dashboard-stats {

        grid-template-columns:
            repeat(2, 1fr);

    }


    .dashboard-motivation {

        display: grid;

        grid-template-columns: 1fr;

    }

}


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

@media (max-width: 650px) {

    .dashboard-hero {

        padding: 55px 5%;

    }


    .dashboard-hero h1 {

        font-size: 36px;

    }


    .dashboard-hero p:last-child {

        font-size: 15px;

    }


    .dashboard-section {

        padding: 50px 5%;

    }


    .dashboard-stats {

        grid-template-columns: 1fr;

    }


    .dashboard-stat {

        padding: 24px 18px;

    }


    .progress-heading h3 {

        font-size: 15px;

    }


    .activity-box {

        padding: 25px 18px;

    }


    .contact {

        padding: 50px 5%;

    }


    .dashboard-motivation {

        padding: 50px 5%;

    }

}