/*
Theme Name: i-sport Theme
Theme URI: https://i-sport.de
Author: i-sport
Description: Modern WordPress theme for i-sport EMS fitness - matches Figma design exactly.
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: i-sport-theme
*/

/* ==========================================================================
   CSS Variables & Reset
   ========================================================================== */
:root {
    --color-black: #0A0A0A;
    --color-dark: #171717;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-400: #9CA3AF;
    --color-gray-600: #6B7280;
    --color-white: #FFFFFF;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-dark);
    background: var(--color-white);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
    width: 100%;
    max-width: 1488px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.site-logo {
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: baseline;
}

.logo-i {
    font-weight: 300;
    color: var(--color-dark);
}

.logo-sport {
    font-weight: 700;
    color: var(--color-dark);
}

.logo-ems {
    font-weight: 300;
    color: var(--color-gray-400);
    margin-left: 2px;
}

.main-nav {
    display: flex;
}

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

.nav-menu a {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color 0.2s;
}

.nav-menu a:hover {
    color: var(--color-dark);
}

.header-cta {
    padding: 10px 20px;
    font-size: 0.75rem;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-dark);
}

@media (max-width: 1024px) {
    .main-nav { display: none; }
    .mobile-toggle { display: flex; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 4px;
    transition: all 0.2s;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-dark {
    background: var(--color-dark);
    color: var(--color-white);
    border-color: var(--color-dark);
}

.btn-dark:hover {
    background: var(--color-black);
    border-color: var(--color-black);
}

.btn-outline {
    background: transparent;
    color: var(--color-dark);
    border-color: var(--color-dark);
}

.btn-outline:hover {
    background: var(--color-dark);
    color: var(--color-white);
}

.btn-white {
    background: var(--color-white);
    color: var(--color-dark);
    border-color: var(--color-white);
}

.btn-white:hover {
    background: transparent;
    color: var(--color-white);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    padding: 160px 0 80px;
    background: linear-gradient(to bottom, var(--color-white) 0%, var(--color-gray-100) 100%);
}

.hero-content {
    max-width: 700px;
}

.hero-badge {
    display: inline-block;
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-gray-600);
    margin-bottom: 24px;
}

.hero-title {
    margin-bottom: 24px;
}

.hero-title .title-line-1 {
    display: block;
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 900;
    line-height: 1;
    color: var(--color-dark);
}

.hero-title .title-line-2,
.hero-title .title-line-3 {
    display: block;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    color: var(--color-dark);
}

.hero-description {
    font-size: 1rem;
    color: var(--color-gray-600);
    margin-bottom: 32px;
    max-width: 400px;
    line-height: 1.7;
}

/* ==========================================================================
   Features Section
   ========================================================================== */
.features-section {
    padding: 60px 0;
    background: var(--color-gray-100);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.feature-card {
    background: var(--color-white);
    padding: 32px;
    border-radius: 8px;
}

.feature-card p {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

.feature-buttons {
    display: flex;
    gap: 16px;
    justify-content: flex-end;
}

@media (max-width: 768px) {
    .features-grid { grid-template-columns: 1fr; }
    .feature-buttons { justify-content: center; flex-wrap: wrap; }
}

/* ==========================================================================
   Why EMS Section
   ========================================================================== */
.why-ems-section {
    padding: 100px 0;
    background: var(--color-white);
}

.why-ems-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.why-ems-title h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.1;
}

.why-ems-title .light {
    display: block;
    font-weight: 300;
    color: var(--color-gray-400);
}

.why-ems-title .bold {
    display: block;
    font-weight: 900;
    color: var(--color-dark);
}

.why-ems-content .lead {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    margin-bottom: 24px;
    line-height: 1.8;
}

.why-ems-content p {
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: 24px;
}

.highlight-box {
    background: var(--color-gray-100);
    padding: 20px;
    border-left: 4px solid var(--color-dark);
}

.highlight-box p {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-dark);
    margin: 0;
}

@media (max-width: 768px) {
    .why-ems-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Comparison Section
   ========================================================================== */
.comparison-section {
    padding: 100px 0;
    background: var(--color-dark);
    color: var(--color-white);
}

.comparison-title {
    text-align: center;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: 60px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.comparison-card {
    background: var(--color-white);
    color: var(--color-dark);
    padding: 40px;
    border-radius: 8px;
}

.card-label {
    display: block;
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gray-400);
    margin-bottom: 16px;
}

.comparison-card p {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

.percentage {
    margin-bottom: 16px;
}

.percentage .prefix {
    display: block;
    font-size: 0.875rem;
    color: var(--color-gray-400);
}

.percentage .number {
    display: block;
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 900;
    line-height: 1;
    color: var(--color-dark);
}

@media (max-width: 768px) {
    .comparison-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Vorreiter Section
   ========================================================================== */
.vorreiter-section {
    padding: 100px 0;
    background: var(--color-white);
}

.vorreiter-section .section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.vorreiter-section .section-header h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.vorreiter-section .section-header p {
    color: var(--color-gray-600);
}

.vorreiter-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.vorreiter-content p {
    color: var(--color-gray-600);
    margin-bottom: 16px;
    line-height: 1.8;
}

.vorreiter-image img {
    border-radius: 8px;
}

@media (max-width: 768px) {
    .vorreiter-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Material Section
   ========================================================================== */
.material-section {
    padding: 100px 0;
    background: var(--color-dark);
    color: var(--color-white);
}

.material-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.material-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.material-content h2 span {
    display: block;
}

.material-content > p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 32px;
    line-height: 1.8;
}

.material-features {
    list-style: none;
}

.material-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: rgba(255,255,255,0.9);
}

.material-features .check {
    color: var(--color-white);
    font-weight: 600;
}

.material-image img {
    border-radius: 8px;
}

@media (max-width: 768px) {
    .material-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Versatile Section
   ========================================================================== */
.versatile-section {
    padding: 100px 0;
    background: var(--color-white);
}

.versatile-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.versatile-image img {
    border-radius: 8px;
}

.versatile-content h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
}

.versatile-content h2 span {
    display: block;
}

.versatile-content h2 .highlight {
    color: var(--color-gray-400);
}

.versatile-content > p {
    color: var(--color-gray-600);
    margin-bottom: 24px;
    line-height: 1.8;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    background: var(--color-gray-100);
    color: var(--color-dark);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

@media (max-width: 768px) {
    .versatile-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Home Training Section
   ========================================================================== */
.home-training-section {
    padding: 100px 0;
    background: var(--color-gray-100);
}

.home-training-section .section-title {
    text-align: center;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: 48px;
    text-transform: uppercase;
}

.training-categories {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.category {
    background: var(--color-white);
    padding: 32px;
    border-radius: 8px;
    text-align: center;
}

.category h4 {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.category p {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.training-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    background: var(--color-white);
    padding: 48px;
    border-radius: 8px;
}

.training-info h3 {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 24px;
}

.training-info ul {
    list-style: none;
}

.training-info li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: var(--color-gray-600);
}

.training-info .check {
    color: var(--color-dark);
    font-weight: 600;
}

.training-cta {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.training-cta p {
    color: var(--color-gray-600);
    margin-bottom: 24px;
    line-height: 1.7;
}

@media (max-width: 768px) {
    .training-categories { grid-template-columns: 1fr; }
    .training-content { grid-template-columns: 1fr; }
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta-section {
    padding: 120px 0;
    background: var(--color-dark);
    text-align: center;
}

.cta-section h2 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: 40px;
}

.cta-section h2 span {
    display: block;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    padding: 40px 0;
    background: var(--color-black);
    color: rgba(255,255,255,0.6);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-size: 1rem;
}

.footer-logo .logo-i { color: var(--color-white); font-weight: 300; }
.footer-logo .logo-sport { color: var(--color-white); font-weight: 700; }
.footer-logo .logo-ems { color: var(--color-gray-400); font-weight: 300; margin-left: 2px; }

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.6);
    transition: color 0.2s;
}

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

@media (max-width: 768px) {
    .footer-inner { flex-direction: column; gap: 24px; text-align: center; }
    .footer-links { flex-wrap: wrap; justify-content: center; }
}