/* ============================================
   CSS RESET & BASE STYLES
   ============================================ */

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

html, body {
    color: var(--dark);
    font-family: var(--font-secondary);
    background-color: var(--light);
    scroll-behavior: smooth;
}

/* ============================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ============================================ */

:root {
    /* Colors */
    --light: #F7F6F4;
    --dark: #0F1720;
    --primary: #5170FF;
    --secondary: #FF6B4A;
    --mid: #ACAEB8;

    /* Typography - Font Families */
    --font-primary: 'Outfit', sans-serif;
    --font-secondary: 'STIX Two Text', serif;

    /* Typography - Font Sizes */
    --font-title-size: 32px;
    --font-outfit-body-size: 16px;
    --font-stix-body-size: 16px;
    --font-regular-size: 12px;
    --font-logo-size: 28px;
    --font-signup-heading-size: 24px;
    --font-form-size: 14px;

    /* Typography - Font Weights */
    --font-title-weight: 700;
    --font-outfit-body-weight: 600;
    --font-stix-body-weight: 500;
    --font-regular-weight: 400;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    --spacing-hero: 6rem;

    /* Border Radius */
    --radius-button: 20px;

    /* Transitions */
    --transition-default: all 0.25s ease;
}

/* ============================================
   LAYOUT COMPONENTS
   ============================================ */

.container {
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

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

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
}

.navbar .logo {
    font-family: var(--font-primary);
    font-size: var(--font-logo-size);
    font-weight: var(--font-title-weight);
}

.navbar .nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.navbar .nav-links .current-page {
    color: var(--primary);
}

.navbar a {
    font-family: var(--font-primary);
    font-size: var(--font-outfit-body-size);
    font-weight: var(--font-outfit-body-weight);
    text-decoration: none;
    color: inherit;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.navbar a:focus,
.navbar a:active {
    outline: none;
}

.navbar a:hover {
    opacity: 0.8;
}

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

.hero {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    padding: var(--spacing-hero) 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: var(--spacing-sm);
    background:
        linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.5)),
        url('./assets/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero h1 {
    font-family: var(--font-primary);
    font-size: var(--font-title-size);
    font-weight: var(--font-title-weight);
}

.hero p {
    max-width: 45%;
    font-family: var(--font-secondary);
    font-size: var(--font-stix-body-size);
    font-weight: var(--font-stix-body-weight);
}

.hero .cta {
    display: flex;
    gap: var(--spacing-lg);
}

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

.primary-button,
.secondary-button {
    width: 16rem;
    font-family: var(--font-primary);
    font-size: var(--font-outfit-body-size);
    font-weight: var(--font-outfit-body-weight);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-button);
    display: inline-block;
    cursor: pointer;
    text-decoration: none;
    user-select: none;
    transition: var(--transition-default);
}

.primary-button {
    color: var(--light);
    background-color: var(--secondary);
    border: none;
}

.secondary-button {
    color: var(--secondary);
    background-color: transparent;
    border: 1px solid var(--secondary);
}

.primary-button:hover,
.secondary-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.primary-button:hover {
    background-color: var(--dark);
    color: var(--light);
}

.secondary-button:hover {
    background-color: var(--secondary);
    color: var(--light);
    border-color: var(--secondary);
}

.primary-button:active,
.secondary-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    opacity: 0.9;
}

/* ============================================
   MISSION STATEMENT
   ============================================ */

.mission-statement {
    padding: var(--spacing-xl) 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.mission-statement p {
    max-width: 38%;
    margin: 0 auto;
    font-family: var(--font-secondary);
    font-size: var(--font-stix-body-size);
    font-weight: var(--font-regular-weight);
}

/* ============================================
   SIGN UP SECTION
   ============================================ */

.sign-up {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xxl);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.sign-up .left {
    width: 400px;
    max-width: 45%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    font-size: var(--font-signup-heading-size);
}

.sign-up .right {
    width: 400px;
    max-width: 45%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.sign-up .right form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
    max-width: 500px;
    font-family: var(--font-primary);
    font-weight: var(--font-outfit-body-weight);
    font-size: var(--font-outfit-body-size);
}

.sign-up .right form .form-row {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-sm);
    width: 100%;
}

.sign-up .right p {
    color: var(--primary);
    font-family: var(--font-primary);
    font-size: var(--font-outfit-body-size);
    font-weight: var(--font-outfit-body-weight);
    margin-bottom: var(--spacing-xs);
}

.sign-up .right form input[type="email"] {
    flex: 1;
    font-family: var(--font-primary);
    font-size: var(--font-outfit-body-size);
    font-weight: var(--font-outfit-body-weight);
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--mid);
    border-radius: var(--radius-button);
    background-color: var(--light);
    color: var(--dark);
    outline: none;
    transition: var(--transition-default);
}

.sign-up .right form input[type="email"]:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(81, 112, 255, 0.1);
}

.sign-up .right form input[type="email"]::placeholder {
    color: var(--mid);
    opacity: 0.7;
}

.sign-up .right form button[type="submit"] {
    flex-shrink: 0;
    white-space: nowrap;
    font-family: var(--font-primary);
    font-size: var(--font-outfit-body-size);
    font-weight: var(--font-outfit-body-weight);
    color: var(--light);
    background-color: var(--secondary);
    padding: var(--spacing-xs) var(--spacing-md);
    border: none;
    border-radius: var(--radius-button);
    cursor: pointer;
    user-select: none;
    transition: var(--transition-default);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sign-up .right form button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    background-color: var(--dark);
    color: var(--light);
}

.sign-up .right form button[type="submit"]:active {
    transform: translateY(0);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    opacity: 0.9;
}

.sign-up .right form button[type="submit"]:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.sign-up .right form .form-message {
    margin-top: var(--spacing-sm);
    font-family: var(--font-primary);
    font-size: var(--font-outfit-body-size);
    font-weight: var(--font-outfit-body-weight);
    text-align: center;
    min-height: 1.5rem;
    transition: var(--transition-default);
}

.sign-up .right form .form-message.success {
    color: var(--primary);
}

.sign-up .right form .form-message.error {
    color: var(--secondary);
}

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

.footer {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    padding: var(--spacing-xl) 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: var(--spacing-sm);
    background: var(--dark);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--light);
    font-size: var(--font-regular-size);
    font-weight: var(--font-regular-weight);
    font-family: var(--font-primary);
}

/* ============================================
   RESPONSIVE DESIGN - TABLETS
   ============================================ */

@media screen and (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }

    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        max-width: 70%;
    }

    .mission-statement p {
        max-width: 60%;
    }

    .sign-up {
        flex-direction: column;
        gap: var(--spacing-xl);
    }

    .sign-up .left,
    .sign-up .right {
        width: 100%;
        max-width: 600px;
    }
}

/* ============================================
   RESPONSIVE DESIGN - MOBILE
   ============================================ */

@media screen and (max-width: 768px) {
    :root {
        --font-title-size: 24px;
        --font-logo-size: 22px;
        --font-signup-heading-size: 20px;
        --spacing-hero: 4rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .navbar {
        padding: var(--spacing-sm) var(--spacing-md);
        flex-wrap: wrap;
    }

    .navbar .nav-links {
        gap: var(--spacing-md);
        font-size: 14px;
    }

    .hero {
        padding: var(--spacing-hero) var(--spacing-md);
    }

    .hero h1 {
        font-size: var(--font-title-size);
        line-height: 1.2;
    }

    .hero p {
        max-width: 100%;
        font-size: 15px;
        padding: 0 var(--spacing-sm);
    }

    .hero .cta {
        flex-direction: column;
        gap: var(--spacing-md);
        width: 100%;
        padding: 0 var(--spacing-md);
    }

    .primary-button,
    .secondary-button {
        width: 100%;
        max-width: 100%;
    }

    .mission-statement {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .mission-statement p {
        max-width: 100%;
        font-size: 15px;
        padding: 0 var(--spacing-sm);
    }

    .sign-up {
        flex-direction: column;
        gap: var(--spacing-lg);
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .sign-up .left {
        width: 100%;
        max-width: 100%;
        font-size: var(--font-signup-heading-size);
        padding: 0 var(--spacing-sm);
    }

    .sign-up .right {
        width: 100%;
        max-width: 100%;
    }

    .sign-up .right form {
        max-width: 100%;
    }

    .sign-up .right form .form-row {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .sign-up .right form input[type="email"],
    .sign-up .right form button[type="submit"] {
        width: 100%;
    }

    .sign-up .right form button[type="submit"] {
        flex-shrink: 1;
    }
}

/* ============================================
   RESPONSIVE DESIGN - SMALL MOBILE
   ============================================ */

@media screen and (max-width: 480px) {
    :root {
        --font-title-size: 20px;
        --font-logo-size: 20px;
        --font-signup-heading-size: 18px;
        --font-outfit-body-size: 14px;
        --spacing-hero: 3rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .navbar {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .navbar .nav-links {
        gap: var(--spacing-sm);
        font-size: 13px;
    }

    .hero {
        padding: var(--spacing-hero) var(--spacing-sm);
    }

    .hero p {
        font-size: 14px;
    }

    .mission-statement {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .mission-statement p {
        font-size: 14px;
    }

    .sign-up {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .footer {
        padding: var(--spacing-lg) var(--spacing-sm);
        font-size: 11px;
    }
}