/* ==========================================================================
   Tsuri School - Master Global Stylesheet (Fixed Mobile & Footer)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #6B21A8;         /* Royal Purple */
    --primary-light: #7C3AED;
    --primary-dark: #581C87;
    --primary-darker: #3B0764;
    --accent: #F59E0B;          /* Premium Gold */
    --accent-light: #FCD34D;
    --text-dark: #1F2937;
    --text-light: #4B5563;
    --bg-light: #F9FAFB;
    --bg-purple-light: #F5F3FF;
    --white: #FFFFFF;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Global Header & Desktop Navigation */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
}

.logo {
    display: flex;
    align-items: center;
    padding: 5px 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-light);
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

.nav-links a:hover, 
.nav-links a.active {
    color: var(--primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: var(--transition);
}

.nav-links a:hover::after, 
.nav-links a.active::after {
    width: 100%;
}

.cta-btn {
    background-color: var(--primary);
    color: var(--white) !important;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.cta-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cta-btn::after {
    display: none !important;
}

/* Base Hamburger Setup (Hidden on Desktop) */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
    padding: 0;
}

.menu-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Universal Layout & Sections */
.hero {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--bg-purple-light) 0%, #FFFFFF 100%);
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-darker);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 650px;
    margin: 0 auto 35px;
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    color: var(--primary-dark);
    margin-bottom: 50px;
    font-weight: 700;
}

.section-title span {
    color: var(--accent);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--accent);
    margin: 12px auto 0;
    border-radius: 2px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.card h3 {
    margin-bottom: 15px;
    color: var(--primary-dark);
    font-size: 22px;
}

/* Contact Grid & Form Elements */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus, 
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(107, 33, 168, 0.1);
}

.submit-btn {
    background-color: var(--primary);
    color: var(--white);
    border: none;
    padding: 16px 30px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    width: 100%;
    transition: var(--transition);
}

.submit-btn:hover {
    background-color: var(--primary-dark);
}

/* Global Footer Layout */
footer {
    background-color: #111827;
    color: #9CA3AF;
    padding: 70px 0 30px;
    font-size: 15px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 24px;
}

.footer-brand p {
    max-width: 320px;
}

.footer-links h4 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 18px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid #374151;
    padding-top: 30px;
}

/* ==========================================================================
   Responsive Breakpoints & Mobile Menu Architecture
   ========================================================================== */
@media (max-width: 768px) {
    .nav-container {
        position: relative;
        height: 80px;
    }

    /* Force show toggle button on mobile viewports */
    .menu-toggle {
        display: flex;
    }

    /* Animate Hamburger into Cross */
    .menu-toggle.open span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    .menu-toggle.open span:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.open span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    /* Responsive Link Drawer Dropdown */
    .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        box-shadow: var(--shadow-md);
        padding: 30px 20px;
        gap: 20px;
        text-align: center;
        
        /* State Transformations */
        opacity: 0;
        transform: translateY(-15px);
        pointer-events: none;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-links.open {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .nav-links a {
        display: block;
        padding: 8px 0;
        font-size: 18px;
    }
    
    .nav-links a::after {
        display: none;
    }

    .cta-btn {
        border-radius: 8px !important;
        margin: 10px auto 0;
        width: 100%;
        max-width: 280px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}