/* ========== CSS Variables ========== */
:root {
    --bg-main: #F3EFEA;
    --green-dark: #4E5B3A;
    --sage: #3F4A36;
    --terracotta: #C06A45;
    --gold: #D4A62A;
    --accent-copper: #B86A42;
    --accent-gold: #D2A73B;
    --text-main: #2B2B2B;
    --text-secondary: #6F6F6F;
    --card-bg: #FFFFFF;
    --progress-bg: #E2E2E2;
    --radio-border: #CFCFCF;
    --radio-hover-bg: #F7F6F3;
    --footer-bg: #1E1E1E;
    --footer-text: #B5B5B5;
}

/* ========== Reset & Base ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Poppins', system-ui, -apple-system, sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background: var(--bg-main);
}

img {
    max-width: 100%;
    display: block;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ========== Container ========== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
}

/* ========== Particles Background ========== */
.particles-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: rgba(78, 91, 58, 0.25);
    pointer-events: none;
    animation: float linear infinite;
}

@keyframes float {
    0% {
        transform: translateY(-100px) translateX(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(100vh) translateX(50px) rotate(360deg);
        opacity: 0;
    }
}

/* ========== Header ========== */
.header {
    height: 72px;
    border-bottom: 1px solid rgba(78, 91, 58, 0.1);
    position: sticky;
    top: 0;
    background: var(--bg-main);
    z-index: 1000;
}

.header .container {
    height: 100%;
}

.header__wrapper {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__wrapper * {
    line-height: 1;
}

.header__nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

.header__logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--green-dark);
    display: inline-block;
    vertical-align: middle;
}

.nav__link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-main);
    transition: color 0.3s;
    display: inline-block;
    vertical-align: middle;
}

.nav__link:hover {
    color: var(--green-dark);
}

.header__burger {
    display: none;
    flex-direction: column;
    gap: 4px;
    width: 24px;
}

.header__burger span {
    width: 100%;
    height: 2px;
    background: var(--text-main);
    transition: 0.3s;
}

@media (max-width: 768px) {
    .header__nav {
        display: none;
    }
    
    .header__burger {
        display: flex;
    }
}

/* ========== Quiz Intro ========== */
.quiz-intro {
    padding: 80px 0 40px;
    text-align: center;
    background: var(--bg-main);
    position: relative;
    z-index: 1;
}

.quiz-intro__title {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
    line-height: 1.2;
}

.quiz-intro__subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .quiz-intro {
        padding: 40px 0 20px;
    }
    
    .quiz-intro__title {
        font-size: 32px;
    }
    
    .quiz-intro__subtitle {
        font-size: 16px;
    }
}

/* ========== Buttons ========== */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    z-index: 1;
}

.btn--primary {
    background: linear-gradient(135deg, var(--sage) 0%, var(--terracotta) 100%);
    color: var(--card-bg);
    border: none;
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(78, 91, 58, 0.4);
}

.btn--secondary {
    border: 2px solid var(--green-dark);
    color: var(--green-dark);
    background: transparent;
}

.btn--secondary:hover {
    background: var(--green-dark);
    color: var(--card-bg);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn--full {
    width: 100%;
}

@media (max-width: 768px) {
    .btn {
        width: 100%;
    }
}

/* ========== Questionnaire ========== */
.questionnaire {
    padding: 40px 0 80px;
    background: var(--bg-main);
    position: relative;
    z-index: 1;
}

.questionnaire__card {
    max-width: 800px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    padding: 32px;
}

.questionnaire__progress {
    margin-bottom: 32px;
}

.progress__text {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.progress__bar {
    height: 6px;
    background: var(--progress-bg);
    border-radius: 999px;
    overflow: hidden;
}

.progress__fill {
    height: 100%;
    background: linear-gradient(135deg, var(--sage) 0%, var(--terracotta) 100%);
    transition: width 0.3s ease;
}

.questionnaire__question {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-main);
}

.questionnaire__answers {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.answer__option {
    padding: 16px 20px;
    border: 2px solid var(--radio-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    background: var(--card-bg);
}

.answer__option:hover {
    background: var(--radio-hover-bg);
    border-color: var(--sage);
}

.answer__option.active {
    border-color: var(--sage);
    background: rgba(63, 74, 54, 0.05);
}

.questionnaire__navigation {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

@media (max-width: 768px) {
    .questionnaire {
        padding: 20px 0 40px;
    }
    
    .questionnaire__card {
        padding: 24px 16px;
    }
    
    .questionnaire__question {
        font-size: 20px;
    }
}

/* ========== Email Capture ========== */
.email-capture {
    padding: 80px 0;
    background: var(--bg-main);
    position: relative;
    z-index: 1;
}

.email-capture__card {
    max-width: 600px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    padding: 48px 40px;
}

.email-capture__title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-main);
    text-align: center;
    margin-bottom: 12px;
}

.email-capture__subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 32px;
}

.email-capture__form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
}

.form-group input {
    padding: 14px 16px;
    border: 2px solid var(--radio-border);
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    color: var(--text-main);
    background: var(--card-bg);
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--sage);
}

.form-group input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.form-privacy {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: -8px;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .email-capture {
        padding: 40px 0;
    }
    
    .email-capture__card {
        padding: 32px 24px;
    }
    
    .email-capture__title {
        font-size: 26px;
    }
}

/* ========== Results Screen ========== */
.results-screen {
    padding: 80px 0;
    background: var(--bg-main);
    position: relative;
    z-index: 1;
}

.results-screen__card {
    max-width: 900px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    padding: 48px 40px;
}

.results-screen__title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-main);
    text-align: center;
    margin-bottom: 12px;
}

.results-screen__subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 40px;
}

.constitution-bars {
    margin-bottom: 48px;
}

.constitution-bar {
    margin-bottom: 24px;
}

.constitution-bar__header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.constitution-bar__name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
}

.constitution-bar__percent {
    font-size: 18px;
    font-weight: 700;
    color: var(--sage);
}

.constitution-bar__fill-wrapper {
    height: 12px;
    background: var(--progress-bg);
    border-radius: 999px;
    overflow: hidden;
}

.constitution-bar__fill {
    height: 100%;
    transition: width 1s ease;
    border-radius: 999px;
    width: 0;
}

.constitution-bar__fill.vata {
    background: linear-gradient(135deg, #8B7355 0%, #A0826D 100%);
}

.constitution-bar__fill.pitta {
    background: linear-gradient(135deg, var(--sage) 0%, var(--terracotta) 100%);
}

.constitution-bar__fill.kapha {
    background: linear-gradient(135deg, #5B7065 0%, #7A8B82 100%);
}

.recommendations {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.recommendation-block__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 16px;
}

.recommendation-block__list {
    list-style: none;
    padding: 0;
}

.recommendation-block__list li {
    font-size: 15px;
    color: var(--text-secondary);
    padding-left: 24px;
    position: relative;
    margin-bottom: 8px;
    line-height: 1.6;
}

.recommendation-block__list li:before {
    content: "•";
    position: absolute;
    left: 8px;
    color: var(--sage);
    font-weight: 700;
}

@media (max-width: 768px) {
    .results-screen {
        padding: 40px 0;
    }
    
    .results-screen__card {
        padding: 32px 24px;
    }
    
    .results-screen__title {
        font-size: 26px;
    }
    
    .recommendations {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* ========== Footer ========== */
.footer {
    background: var(--footer-bg);
    padding: 48px 0 24px;
    position: relative;
    z-index: 1;
}

.footer__wrapper {
    text-align: center;
}

.footer__logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--card-bg);
    margin-bottom: 8px;
}

.footer__slogan {
    font-size: 14px;
    color: var(--footer-text);
    margin-bottom: 32px;
}

.footer__bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.footer__copyright {
    font-size: 13px;
    color: var(--footer-text);
}

.footer__link {
    font-size: 13px;
    color: var(--footer-text);
    transition: color 0.3s;
}

.footer__link:hover {
    color: var(--card-bg);
}

@media (max-width: 768px) {
    .footer__bottom {
        flex-direction: column;
        gap: 12px;
    }
}

/* ========== Results CTA Button ========== */
.results-cta {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 2px solid var(--progress-bg);
    text-align: center;
}

/* ========== Form Checkboxes ========== */
.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.form-checkbox label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-weight: 400;
}

.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    min-width: 20px;
    cursor: pointer;
    margin-top: 2px;
}

.form-checkbox span {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.form-checkbox a {
    color: var(--sage);
    text-decoration: underline;
}

.form-checkbox a:hover {
    color: var(--terracotta);
}

/* ========== Thank You Screen ========== */
.thank-you-screen {
    padding: 80px 0;
    background: var(--bg-main);
    position: relative;
    z-index: 1;
}

.thank-you-screen__card {
    max-width: 600px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    padding: 64px 40px;
    text-align: center;
}

.thank-you-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--sage) 0%, var(--terracotta) 100%);
    color: white;
    font-size: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.thank-you-screen__title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
}

.thank-you-screen__text {
    font-size: 18px;
    color: var(--text-main);
    margin-bottom: 12px;
    line-height: 1.6;
}

.thank-you-screen__subtext {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .thank-you-screen {
        padding: 40px 0;
    }
    
    .thank-you-screen__card {
        padding: 48px 24px;
    }
    
    .thank-you-screen__title {
        font-size: 28px;
    }
    
    .thank-you-icon {
        width: 64px;
        height: 64px;
        font-size: 36px;
    }
}