/* ==========================================================================
   LOOP Marketing - Global Styles
   Based on loop.com.sg design system
   ========================================================================== */

/* CSS Variables - Extracted from LOOP site */
:root {
    /* Primary Colors */
    --color-primary: #ff7c1e;
    --color-primary-dark: #e66f1a;
    --color-secondary: #515151;

    /* Text Colors */
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-gray: #515151;

    /* Background Colors */
    --color-white: #ffffff;
    --color-white-transparent: rgba(255, 255, 255, 0.83);
    --color-bg-light: #f5f5f5;
    --color-bg-dark: #1a1a1a;
    --color-border: #e0e0e0;

    /* Typography - System fonts for zero CLS */
    --font-primary: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Font Sizes */
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 40px;
    --font-size-5xl: 50px;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 64px;
    --spacing-2xl: 80px;
    --spacing-3xl: 120px;

    /* Container */
    --container-width: 1200px;
    --container-padding: 20px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-speed: 0.3s;
    --transition-timing: ease-in-out;
}

/* Reset & Base Styles */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.menu-open {
    overflow: hidden;
}

/* Image Protection - Disable right-click, drag, and selection */
img {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    user-drag: none;
    pointer-events: auto;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    margin: 0 0 var(--spacing-md) 0;
    color: var(--color-text);
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

h5 {
    font-size: var(--font-size-xl);
}

h6 {
    font-size: var(--font-size-lg);
}

p {
    margin: 0 0 var(--spacing-sm) 0;
    line-height: 1.6;
}

/* Justified text for main content blocks */
.column-content p,
.content-block p,
.service-content p,
.feature-content p,
section > .container > p {
    text-align: justify;
}

/* Disable justify on mobile - left align is more readable */
@media (max-width: 768px) {
    .column-content p,
    .content-block p,
    .service-content p,
    .feature-content p,
    section > .container > p {
        text-align: left;
    }
}

/* Section intros should always be centered */
.section-intro,
p.section-intro {
    text-align: center;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-speed) var(--transition-timing);
}

a:hover {
    color: var(--color-primary-dark);
}

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

/* Container */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Section Styles */
section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-4xl);
    font-weight: 600;
    color: var(--color-text);
}

/* Button Styles - Matching LOOP design */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-timing);
    line-height: 1.5;
}

.btn--primary {
    background-color: #b85400;
    color: var(--color-white);
    border-color: #b85400;
}

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

/* Use will-change for composited animations */
.btn {
    will-change: transform;
}

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

.btn--whatsapp {
    background-color: #25D366;
    color: var(--color-white);
    border: 2px solid #25D366;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn--whatsapp:hover {
    background-color: #1DA851;
    border-color: #1DA851;
    color: var(--color-white);
}

.btn--whatsapp svg {
    flex-shrink: 0;
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn--secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

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

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

.btn--large {
    padding: 18px 40px;
    font-size: var(--font-size-lg);
}

.btn--small {
    padding: 10px 20px;
    font-size: 14px;
}

.btn--block {
    display: block;
    width: 100%;
}

/* Legacy button classes for compatibility */
.btn-primary { background-color: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
.btn-primary:hover { background-color: var(--color-primary-dark); border-color: var(--color-primary-dark); color: var(--color-white); }
.btn-secondary { background-color: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-secondary:hover { background-color: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
.btn-contact { background-color: var(--color-primary); color: var(--color-white); padding: 10px 24px; border-radius: var(--radius-sm); }
.btn-contact:hover { background-color: var(--color-primary-dark); color: var(--color-white); }
.btn-large { padding: 18px 40px; font-size: var(--font-size-lg); }

/* Grid Utilities */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Flex Utilities */
.flex {
    display: flex;
    gap: var(--spacing-md);
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* SVG Icon Styles */
svg {
    fill: currentColor;
}

.problem-icon svg,
.tab-btn svg {
    fill: currentColor;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-white {
    color: var(--color-white);
}

/* Responsive Typography */
@media (max-width: 1024px) {
    :root {
        --font-size-5xl: 45px;
        --font-size-4xl: 36px;
        --font-size-3xl: 28px;
        --spacing-lg: 40px;
        --spacing-xl: 56px;
        --spacing-2xl: 64px;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-5xl: 40px;
        --font-size-4xl: 32px;
        --font-size-3xl: 24px;
        --font-size-2xl: 20px;
        --spacing-md: 20px;
        --spacing-lg: 32px;
        --spacing-xl: 48px;
        --spacing-2xl: 56px;
        --container-padding: 16px;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-5xl: 32px;
        --font-size-4xl: 28px;
        --font-size-3xl: 22px;
        --font-size-2xl: 18px;
        --spacing-sm: 12px;
        --spacing-md: 16px;
        --spacing-lg: 24px;
        --spacing-xl: 32px;
        --spacing-2xl: 40px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    .btn-large {
        padding: 14px 28px;
        font-size: 16px;
    }
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */

.header {
    background-color: var(--color-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}

.header__container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.header__logo {
    display: flex;
    align-items: center;
    z-index: 1001;
}

.header__logo img {
    height: 50px;
    width: auto;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav__link {
    color: var(--color-text);
    font-size: 15px;
    font-weight: 500;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-speed) var(--transition-timing);
    position: relative;
}

.nav__link:hover {
    color: var(--color-primary);
    background-color: rgba(255, 124, 30, 0.05);
}

.nav__link--active {
    color: #9a4500;
    background-color: rgba(255, 124, 30, 0.1);
}

.nav__cta .btn {
    padding: 10px 24px;
    font-size: 15px;
}

/* Mobile Menu Toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-speed) var(--transition-timing);
}

/* Mobile Menu Styles */
@media (max-width: 1024px) {
    .nav__toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background-color: var(--color-white);
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 30px 30px;
        gap: var(--spacing-sm);
        transition: right var(--transition-speed) var(--transition-timing);
        overflow-y: auto;
    }

    .nav.active {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        gap: 8px;
    }

    .nav__link {
        width: 100%;
        padding: 12px 16px;
    }

    .nav__cta {
        width: 100%;
        margin-top: var(--spacing-sm);
    }

    .nav__cta .btn {
        width: 100%;
        text-align: center;
    }

    /* Toggle animation when active */
    .nav__toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .nav__toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav__toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
}

@media (max-width: 768px) {
    .header__container {
        height: 70px;
    }

    .header__logo img {
        height: 40px;
    }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    background-color: #1a1a1a;
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer__logo img {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-sm);
}

.footer__tagline {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--spacing-sm);
}

.footer__social {
    display: flex;
    gap: 12px;
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all var(--transition-speed) var(--transition-timing);
    will-change: transform;
}

.footer__social-link:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

.footer__social-icon {
    width: 18px;
    height: 18px;
    fill: var(--color-white);
}

.footer__heading {
    color: var(--color-white);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

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

.footer__link {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: color var(--transition-speed) var(--transition-timing);
}

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

.footer__contact-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer__contact-info p {
    margin: 0;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer__bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.footer__bottom a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: underline;
}

.footer__bottom a:hover {
    color: var(--color-primary);
}

/* Footer Responsive */
@media (max-width: 1024px) {
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .footer__logo {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer__social {
        justify-content: center;
    }

    .footer__column {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer__links {
        align-items: center;
    }

    .footer__contact-info {
        align-items: center;
    }

    .footer__contact-info p {
        text-align: center;
    }

    .footer__heading {
        margin-bottom: var(--spacing-sm);
    }
}

/* Print Styles */
@media print {
    .header-main,
    .header,
    .footer-main,
    .footer {
        display: none;
    }
}