:root {

    --red: #e60023;
    --red-dark: #b8001c;
    --red-light: #ff3b55;

    --bg: #ffffff;
    --bg-soft: #f7f7f8;

    --glass: rgba(255, 255, 255, 0.90);
    --glass-border: rgba(0, 0, 0, 0.10);

    --text: #111111;
    --text-soft: #555555;
    --text-muted: #777777;

    --radius: 24px;

}


/* =========================================
   GLOBAL
   ========================================= */

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

html {
    scroll-behavior: smooth;
}

body {

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

    color: var(--text);

    background: var(--bg);

    line-height: 1.6;

    overflow-x: hidden;

}


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


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

nav {

    position: fixed;

    top: 15px;
    left: 50%;

    transform: translateX(-50%);

    width: min(1180px, calc(100% - 30px));

    z-index: 1000;

    background: rgba(255, 255, 255, 0.90);

    border: 1px solid rgba(0, 0, 0, 0.10);

    border-radius: 20px;

    backdrop-filter: blur(25px);

    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);

}


.nav-container {

    padding: 15px 22px;

    display: flex;

    align-items: center;

    justify-content: space-between;

}


.logo {

    font-size: 21px;

    font-weight: 800;

    letter-spacing: -0.5px;

    color: #111111;

}


.logo span {

    font-size: 11px;

    display: block;

    font-weight: 500;

    color: var(--text-muted);

}


.nav-links {

    display: flex;

    gap: 8px;

    align-items: center;

    list-style: none;

}


.nav-links a {

    font-size: 13px;

    font-weight: 600;

    color: #555555;

    padding: 9px 13px;

    border-radius: 12px;

    transition: 0.3s ease;

}


.nav-links a:hover {

    color: var(--red);

    background: rgba(230, 0, 35, 0.07);

}


.nav-links a.active {

    color: #ffffff;

    background: var(--red);

}


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

.hero {

    min-height: 100vh;

    padding: 180px 30px 120px;

    background:
        radial-gradient(
            circle at 75% 30%,
            rgba(230, 0, 35, 0.10),
            transparent 30%
        ),
        #ffffff;

}


.hero-container {

    max-width: 1200px;

    width: 100%;

    margin: auto;

    display: grid;

    grid-template-columns: 1.1fr 0.9fr;

    gap: 70px;

    align-items: center;

}


.hero-label {

    display: inline-block;

    padding: 8px 14px;

    background: rgba(230, 0, 35, 0.07);

    border: 1px solid rgba(230, 0, 35, 0.25);

    color: var(--red);

    border-radius: 30px;

    font-size: 12px;

    font-weight: 700;

    margin-bottom: 22px;

}


.hero h1 {

    font-size: clamp(52px, 7vw, 88px);

    line-height: 0.94;

    letter-spacing: -5px;

    margin-bottom: 28px;

    color: #111111;

}


.hero h1 span {

    background: linear-gradient(
        100deg,
        #ff6b7d 0%,
        #e60023 50%,
        #b8001c 100%
    );

    -webkit-background-clip: text;

    background-clip: text;

    color: transparent;

}


.hero p {

    max-width: 650px;

    font-size: 18px;

    color: var(--text-muted);

    margin-bottom: 35px;

}


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

.hero-buttons {

    display: flex;

    gap: 13px;

    flex-wrap: wrap;

}


.btn {

    padding: 14px 22px;

    border-radius: 14px;

    font-weight: 700;

    font-size: 13px;

    display: inline-block;

    transition: 0.3s ease;

    border: 1px solid rgba(0, 0, 0, 0.12);

}


.btn-primary {

    color: #ffffff;

    background: linear-gradient(
        135deg,
        #ff2947,
        #bd0022
    );

    border-color: transparent;

    box-shadow:
        0 10px 35px rgba(230, 0, 35, 0.20);

}


.btn-primary:hover {

    transform: translateY(-2px);

    box-shadow:
        0 14px 40px rgba(230, 0, 35, 0.28);

}


.btn-secondary {

    color: #222222;

    background: #ffffff;

    border: 1px solid rgba(0, 0, 0, 0.14);

}


.btn-secondary:hover {

    color: var(--red);

    border-color: var(--red);

    background: rgba(230, 0, 35, 0.04);

}


/* =========================================
   HERO CARD
   ========================================= */

.hero-card {

    background:
        linear-gradient(
            145deg,
            #ffffff,
            #f7f7f8
        );

    border: 1px solid rgba(0, 0, 0, 0.10);

    border-radius: 30px;

    padding: 42px;

    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.08);

    backdrop-filter: blur(30px);

}


.hero-card h3 {

    font-size: 26px;

    line-height: 1.25;

    margin-bottom: 15px;

    color: #111111;

}


.hero-card p {

    font-size: 14px;

    color: var(--text-muted);

    margin-bottom: 27px;

}


.stat {

    padding: 18px 0;

    border-top: 1px solid rgba(0, 0, 0, 0.10);

}


.stat strong {

    display: block;

    font-size: 19px;

    color: #111111;

}


.stat span {

    font-size: 12px;

    color: var(--text-muted);

}


/* =========================================
   GED LESSON CARDS
   ========================================= */

.lesson-card {

    background: #ffffff !important;

    border: 1px solid rgba(0, 0, 0, 0.10) !important;

    box-shadow:
        0 10px 35px rgba(0, 0, 0, 0.06);

}


.lesson-card:hover {

    border-color: rgba(230, 0, 35, 0.30) !important;

    box-shadow:
        0 15px 40px rgba(230, 0, 35, 0.10);

}


.video-box {

    background: #f1f1f1 !important;

}


.lesson-number {

    color: var(--red) !important;

}


.lesson-content h3 {

    color: #111111;

}


.lesson-content p {

    color: var(--text-soft) !important;

}


/* =========================================
   SUBJECT HEADER
   ========================================= */

.subject-header h2 {

    color: #111111;

}


.subject-header p {

    color: var(--text-soft) !important;

}


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

footer {

    background: #f7f7f8;

    color: #111111;

    padding: 70px 30px 30px;

    border-top: 1px solid rgba(0, 0, 0, 0.08);

}


.footer-grid {

    max-width: 1200px;

    margin: auto;

    display: grid;

    grid-template-columns: 2fr 1fr;

    gap: 50px;

}


footer h3 {

    margin-bottom: 14px;

    color: #111111;

}


footer p,
footer a {

    color: #777777;

    font-size: 13px;

}


footer a:hover {

    color: var(--red);

}


footer ul {

    list-style: none;

}


footer li {

    margin-bottom: 9px;

}


.copyright {

    max-width: 1200px;

    margin: 50px auto 0;

    padding-top: 25px;

    border-top: 1px solid rgba(0, 0, 0, 0.08);

    color: #888888;

    font-size: 12px;

}


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

@media (max-width: 768px) {

    /* NAVBAR */

    nav {

        top: 8px;

        width: calc(100% - 16px);

        border-radius: 18px;

    }


    .nav-container {

        padding: 14px 12px;

        flex-direction: column;

        align-items: center;

        gap: 12px;

    }


    .logo {

        font-size: 19px;

        text-align: center;

    }


    .logo span {

        font-size: 10px;

        text-align: center;

    }


    .nav-links {

        width: 100%;

        display: flex;

        flex-wrap: wrap;

        justify-content: center;

        gap: 5px;

    }


    .nav-links li {

        display: block;

    }


    .nav-links a {

        display: block;

        font-size: 11px;

        padding: 6px 8px;

        border-radius: 8px;

        white-space: nowrap;

    }


    /* HERO */

    .hero {

        min-height: auto;

        padding: 190px 20px 70px;

    }


    .hero-container {

        grid-template-columns: 1fr;

        gap: 35px;

    }


    .hero h1 {

        font-size: clamp(38px, 11vw, 58px);

        line-height: 1;

        letter-spacing: -2px;

    }


    .hero p {

        font-size: 15px;

        line-height: 1.7;

    }


    .hero-label {

        font-size: 11px;

        padding: 7px 12px;

        margin-bottom: 18px;

    }


    /* BUTTONS */

    .hero-buttons {

        flex-direction: column;

        width: 100%;

    }


    .hero-buttons .btn {

        width: 100%;

        text-align: center;

    }


    .btn {

        padding: 12px 18px;

        font-size: 12px;

    }


    /* HERO CARD */

    .hero-card {

        padding: 25px;

        border-radius: 22px;

    }


    .hero-card h3 {

        font-size: 22px;

    }


    /* FOOTER */

    footer {

        padding: 50px 20px 25px;

    }


    .footer-grid {

        grid-template-columns: 1fr;

        gap: 35px;

    }


    .copyright {

        margin-top: 35px;

    }


    /* GED LESSON */

    .lesson-grid {

        grid-template-columns: 1fr;

    }


    .subject-header h2 {

        font-size: 27px;

    }

}


/* =========================================
   SMALL PHONES
   ========================================= */

@media (max-width: 480px) {

    nav {

        width: calc(100% - 12px);

    }


    .nav-container {

        padding: 12px 8px;

    }


    .logo {

        font-size: 17px;

    }


    .nav-links {

        gap: 3px;

    }


    .nav-links a {

        font-size: 10px;

        padding: 5px 6px;

    }


    .hero {

        padding-left: 16px;

        padding-right: 16px;

        padding-top: 185px;

    }


    .hero h1 {

        font-size: 37px;

    }


    .hero p {

        font-size: 14px;

    }

}