/* ============ RESET & VARIABLES ============ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --blue: #0a6cff;
    --blue-dark: #0a1f7a;
    --navy: #0b1b6b;
    --bg: #eaf4ff;
    --card: #ffffff;
    --text: #1c2540;
    --muted: #5d6882;
    --border: #dbe3ee;
    --green: #1a8a3c;
    --red: #e5383b;
    --radius: 14px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', Arial, sans-serif;
    background: linear-gradient(180deg, #e3f1ff 0%, #f4f9ff 100%);
    color: var(--text);
    min-height: 100vh;
}

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

ul,
ol {
    list-style: none;
}

/* ============ HEADER ============ */
.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 12px 5%;
    background: #fff;
    box-shadow: 0 2px 10px rgba(10, 40, 100, .08);
    position: sticky;
    top: 0;
    z-index: 10;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--blue-dark);
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 22px;
}

.logo-text strong {
    display: block;
    font-size: 20px;
    font-weight: 800;
    color: var(--blue-dark);
    line-height: 1.1;
}

.logo-text small {
    font-size: 9.5px;
    letter-spacing: .6px;
    color: var(--muted);
    text-transform: uppercase;
}

.main-nav {
    display: flex;
    gap: 32px;
}

.main-nav a {
    font-weight: 500;
    font-size: 15px;
    transition: color .2s;
}

.main-nav a:hover {
    color: var(--blue);
}

.btn-register-nav {
    background: var(--blue);
    color: #fff;
    font-weight: 600;
    padding: 11px 24px;
    border-radius: 30px;
    font-size: 15px;
    box-shadow: 0 4px 12px rgba(10, 108, 255, .3);
    transition: transform .2s;
}

.btn-register-nav:hover {
    transform: translateY(-2px);
}

/* ============ LAYOUT ============ */
.page {
    max-width: 1300px;
    margin: 28px auto;
    padding: 0 24px 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

/* ============ LEFT INFO CARD ============ */
.info-card {
    background: var(--card);
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(10, 40, 100, .08);
    overflow: hidden;
}

.hero {
    padding: 28px 32px 0;
    background: linear-gradient(160deg, #e7f3ff, #d8ebff);
    position: relative;
}

.badge {
    display: inline-block;
    background: #ffffff;
    color: var(--blue-dark);
    font-weight: 700;
    font-size: 15px;
    padding: 6px 14px;
    border-radius: 8px;
}

.hero h1 {
    font-size: 46px;
    font-weight: 800;
    color: var(--blue-dark);
    margin-top: 14px;
    line-height: 1.1;
}

.hero h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--navy);
    margin-top: 4px;
}

.tagline {
    font-size: 21px;
    color: var(--navy);
    margin-top: 8px;
}

.tagline span {
    margin: 0 14px;
}
.logo-img {
    margin-top: 18px;
    min-height: 60px;
    display: flex;
    align-items: flex-end;
    justify-content: left;
}
.logo-img img {
    width: 10%;
    max-height: 30px;
    object-fit: cover;
    border-radius: 1px 20px 0 0;
}

.hero-img {
    margin-top: 18px;
    min-height: 260px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.hero-img img {
    width: 100%;
    max-height: 330px;
    object-fit: cover;
    border-radius: 16px 16px 0 0;
}

.features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px 16px;
    padding: 22px 28px;
    background: #fff;
    margin: -24px 12px 0;
    border-radius: 20px;
    position: relative;
    box-shadow: 0 -4px 16px rgba(10, 40, 100, .06);
}

.feature {
    display: flex;
    align-items: center;
    gap: 14px;
}

.feature strong {
    display: block;
    font-size: 17px;
    color: var(--navy);
    line-height: 1.2;
}

.feature small {
    display: block;
    font-size: 12.5px;
    color: var(--muted);
}

.f-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 22px;
}

.pink {
    background: #ffd9ec;
    color: #e0307f;
}

.blue {
    background: #d6e8ff;
    color: #1b6fe8;
}

.yellow {
    background: #fff0b3;
    color: #c58a00;
}

.green {
    background: #c9f2e0;
    color: #12a06b;
}

.purple {
    background: #e4e0ff;
    color: #5b4bd6;
}

.orange {
    background: #ffe3cc;
    color: #f06a1d;
}

.learn-box {
    background: #fff4cf;
    margin: 18px 12px 12px;
    padding: 20px 26px;
    border-radius: 18px;
}

.learn-box h3 {
    font-size: 20px;
    color: var(--navy);
    margin-bottom: 12px;
}

.learn-box li {
    position: relative;
    padding-left: 34px;
    margin-bottom: 9px;
    font-size: 15px;
}

.learn-box li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    top: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #ff8a1f;
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    display: grid;
    place-items: center;
}

/* ============ RIGHT FORM CARD ============ */
.form-card {
    background: var(--card);
    border-radius: 24px;
    padding: 28px 30px 30px;
    box-shadow: 0 10px 30px rgba(10, 40, 100, .08);
}

/* Stepper */
.stepper {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-bottom: 26px;
}

.stepper::before {
    content: "";
    position: absolute;
    top: 22px;
    left: 12%;
    right: 12%;
    height: 3px;
    background: #cfd6e2;
    z-index: 0;
}

.step {
    text-align: center;
    position: relative;
    z-index: 1;
    flex: 1;
}

.step span {
    width: 46px;
    height: 46px;
    margin: 0 auto;
    border-radius: 50%;
    background: #dfe3ea;
    color: #444;
    font-weight: 700;
    font-size: 18px;
    display: grid;
    place-items: center;
    transition: .3s;
}

.step p {
    font-size: 14px;
    margin-top: 6px;
    color: var(--text);
}

.step.active span,
.step.done span {
    background: var(--blue);
    color: #fff;
    box-shadow: 0 0 0 5px rgba(10, 108, 255, .15);
}

.form-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--blue-dark);
}

.form-sub {
    color: var(--muted);
    font-size: 15px;
    margin: 4px 0 20px;
}

/* Fields */
.field {
    margin-bottom: 16px;
}

.field label {
    display: block;
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 6px;
}

.field label b {
    color: var(--red);
}

.row.two-col {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 16px;
}

.row.two-col:nth-of-type(2) {
    grid-template-columns: 1fr 1fr;
}

.input-wrap {
    position: relative;
}

.input-wrap>i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #4b5568;
    font-size: 16px;
    pointer-events: none;
}

.input-wrap input,
.input-wrap select,
.input-wrap textarea,
.phone-wrap input {
    width: 100%;
    font-family: inherit;
    font-size: 15px;
    color: var(--text);
    border: 1.5px solid var(--border);
    border-radius: 12px;
    padding: 14px 16px 14px 46px;
    background: #fff;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
}

.input-wrap select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23333' stroke-width='2' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.input-wrap input::placeholder,
.input-wrap textarea::placeholder,
.phone-wrap input::placeholder {
    color: #8a93a6;
}

.input-wrap input:focus,
.input-wrap select:focus,
.input-wrap textarea:focus,
.phone-wrap input:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 4px rgba(10, 108, 255, .12);
}

.textarea-wrap>i {
    top: 20px;
    transform: none;
}

.textarea-wrap textarea {
    resize: vertical;
    min-height: 64px;
}

/* Phone */
.phone-wrap {
    display: flex;
    gap: 10px;
}

.country {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 16px;
    background: #eef2f7;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    font-weight: 500;
}

.country i {
    color: #25d366;
    font-size: 20px;
}

.phone-wrap input {
    padding-left: 16px;
    flex: 1;
}

/* Learning mode cards */
.mode-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.mode-card {
    display: flex !important;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    padding: 12px 14px;
    margin: 0 !important;
    font-weight: 400 !important;
    transition: .2s;
}

.mode-card input {
    display: none;
}

.m-icon {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    border-radius: 50%;
    background: #e8edf4;
    color: #4b5568;
    display: grid;
    place-items: center;
    font-size: 18px;
}

.m-text strong {
    display: block;
    font-size: 15px;
}

.m-text small {
    font-size: 12.5px;
    color: var(--muted);
}

.mode-card:has(input:checked) {
    border-color: var(--blue);
    background: #eaf3ff;
}

.mode-card:has(input:checked) .m-icon {
    background: #cfe3ff;
    color: var(--blue);
}

/* Submit */
.btn-submit {
    width: 100%;
    margin-top: 6px;
    padding: 16px;
    border: none;
    cursor: pointer;
    background: linear-gradient(90deg, #0a6cff, #0a56d6);
    color: #fff;
    font-family: inherit;
    font-size: 19px;
    font-weight: 600;
    border-radius: 40px;
    box-shadow: 0 8px 20px rgba(10, 108, 255, .35);
    transition: transform .2s, box-shadow .2s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(10, 108, 255, .4);
}

.btn-submit i {
    margin-right: 8px;
}

.safe-note {
    text-align: center;
    font-size: 13px;
    color: var(--muted);
    margin: 12px 0;
}

.safe-note i {
    margin-right: 6px;
}

.wa-note {
    display: flex;
    align-items: center;
    gap: 14px;
    background: #e5f7e9;
    border-radius: 12px;
    padding: 14px 18px;
}

.wa-note i {
    font-size: 38px;
    color: #25d366;
}

.wa-note p {
    font-size: 13.5px;
    color: #333;
}

.wa-note strong {
    color: #0b6b1d;
    display: block;
    font-size: 15px;
}

.success-msg {
    margin-top: 14px;
    padding: 12px;
    text-align: center;
    border-radius: 10px;
    background: #d9f5e0;
    color: var(--green);
    font-weight: 600;
}

/* Validation */
.error {
    display: none;
    color: var(--red);
    font-size: 12.5px;
    margin-top: 4px;
}

.field.invalid .error {
    display: block;
}

.field.invalid input,
.field.invalid select {
    border-color: var(--red);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1000px) {
    .page {
        grid-template-columns: 1fr;
    }

    .main-nav {
        display: none;
    }
}

@media (max-width: 560px) {
    .hero h1 {
        font-size: 34px;
    }

    .hero h2 {
        font-size: 18px;
    }

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

    .row.two-col,
    .mode-grid {
        grid-template-columns: 1fr !important;
    }

    .form-card {
        padding: 22px 18px;
    }

    .form-title {
        font-size: 26px;
    }

    .logo-text small {
        display: none;
    }
}
button {
    background: #0a6cff;
    color: #fff;
    font-weight: 600;
    padding: 11px 24px;
    border-radius: 30px;
    font-size: 15px;
    box-shadow: 0 4px 12px rgba(10, 108, 255, .3);
    transition: transform .2s;
}
button:hover {
    transform: translateY(-2px);
}