/* ========================================
   Sen Đá Phương Thảo - Landing Page
   ======================================== */

/* --- CSS Variables --- */
:root {
    --color-primary: #2d6a4f;
    --color-primary-light: #40916c;
    --color-primary-dark: #1b4332;
    --color-accent: #95d5b2;
    --color-accent-light: #b7e4c7;
    --color-bg: #0a0f0d;
    --color-bg-card: #131a16;
    --color-bg-card-hover: #1a2420;
    --color-surface: #1a2420;
    --color-text: #e8f0ec;
    --color-text-secondary: #a3b8ad;
    --color-text-muted: #6b8578;
    --color-border: #2a3d33;
    --color-zalo: #0068ff;
    --color-zalo-hover: #0055d4;

    --font-family: 'Be Vietnam Pro', sans-serif;
    --container-max: 1200px;
    --header-height: 68px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(45, 106, 79, 0.3);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

body.no-scroll {
    overflow: hidden;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--color-accent-light);
}

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-family);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.97);
}

.btn--primary {
    background: var(--color-primary);
    color: #fff;
}

.btn--primary:hover {
    background: var(--color-primary-light);
    color: #fff;
    box-shadow: var(--shadow-glow);
}

.btn--outline {
    background: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-primary);
}

.btn--outline:hover {
    background: var(--color-primary);
    color: #fff;
}

.btn--zalo {
    background: var(--color-zalo);
    color: #fff;
}

.btn--zalo:hover {
    background: var(--color-zalo-hover);
    color: #fff;
    box-shadow: 0 0 16px rgba(0, 104, 255, 0.3);
}

/* ========================================
   HEADER
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(10, 15, 13, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.header--scrolled {
    background: rgba(10, 15, 13, 0.95);
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-md);
}

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

.header__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-accent);
    text-decoration: none;
}

.header__logo i {
    font-size: 1.5rem;
    color: var(--color-primary-light);
}

.header__logo:hover {
    color: var(--color-accent-light);
}

.header__nav {
    display: none;
    align-items: center;
    gap: 28px;
}

.header__link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color 0.2s;
}

.header__link:hover {
    color: var(--color-accent);
}

.header__cta {
    display: none;
    padding: 8px 20px;
    font-size: 0.85rem;
}

.header__hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.header__hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.header__hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.header__hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 15, 13, 0.97);
    backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.mobile-menu__link {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-text);
    transition: color 0.2s;
}

.mobile-menu__link:hover {
    color: var(--color-accent);
}

.mobile-menu__cta {
    margin-top: 12px;
    font-size: 1rem;
    padding: 14px 32px;
}

/* ========================================
   HERO
   ======================================== */
.hero {
    position: relative;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 20px 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(45, 106, 79, 0.2) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 80%, rgba(149, 213, 178, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(to top, var(--color-bg), transparent);
    pointer-events: none;
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(45, 106, 79, 0.2);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: 24px;
}

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero__title .highlight {
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    max-width: 520px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.hero__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Decorative plant icons */
.hero__decor {
    position: absolute;
    font-size: 6rem;
    opacity: 0.04;
    color: var(--color-accent);
    pointer-events: none;
}

.hero__decor--1 { top: 15%; left: 8%; transform: rotate(-15deg); }
.hero__decor--2 { bottom: 20%; right: 10%; transform: rotate(20deg); font-size: 5rem; }
.hero__decor--3 { top: 40%; right: 5%; transform: rotate(-30deg); font-size: 4rem; }

/* ========================================
   SECTIONS COMMON
   ======================================== */
.section {
    padding: 80px 0;
}

.section--alt {
    background: var(--color-surface);
}

.section__header {
    text-align: center;
    margin-bottom: 56px;
}

.section__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: rgba(45, 106, 79, 0.15);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 1.4rem;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.section__title {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.section__subtitle {
    font-size: 1rem;
    color: var(--color-text-secondary);
    max-width: 560px;
    margin: 0 auto;
}

/* ========================================
   GIỚI THIỆU (About)
   ======================================== */
.about__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.about__card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 28px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.about__card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.about__card-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(45, 106, 79, 0.15);
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    color: var(--color-accent);
}

.about__card-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.about__card-text {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ========================================
   QUY TRÌNH MUA (Timeline)
   ======================================== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 28px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-accent), var(--color-primary));
    opacity: 0.4;
}

.timeline__item {
    position: relative;
    padding-left: 72px;
    margin-bottom: 40px;
}

.timeline__item:last-child {
    margin-bottom: 0;
}

.timeline__number {
    position: absolute;
    left: 8px;
    top: 0;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    z-index: 1;
}

.timeline__card {
    padding: 24px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.timeline__card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
}

.timeline__title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.timeline__title i {
    font-size: 1rem;
    color: var(--color-primary-light);
}

.timeline__text {
    font-size: 0.92rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.timeline__note {
    margin-top: 12px;
    padding: 12px 16px;
    background: rgba(45, 106, 79, 0.1);
    border-left: 3px solid var(--color-primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.85rem;
    color: var(--color-accent-light);
    line-height: 1.6;
}

/* ========================================
   HƯỚNG DẪN CHỌN CÂY (Grid)
   ======================================== */
.grid-guide {
    max-width: 700px;
    margin: 0 auto;
}

.grid-guide__desc {
    text-align: center;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.grid-guide__visual {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 24px;
}

.grid-guide__label {
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.plant-grid {
    display: grid;
    grid-template-columns: auto repeat(4, 1fr);
    gap: 6px;
}

.plant-grid__header {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-primary-light);
    padding: 8px 4px;
}

.plant-grid__row-label {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-primary-light);
    padding: 4px 8px;
}

.plant-grid__cell {
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    color: var(--color-text-muted);
    transition: all 0.2s;
    cursor: default;
}

.plant-grid__cell:hover {
    background: rgba(45, 106, 79, 0.2);
    border-color: var(--color-primary);
    color: var(--color-accent);
}

.plant-grid__cell--example {
    background: var(--color-primary);
    border-color: var(--color-accent);
    color: #fff;
    font-weight: 600;
}

.grid-guide__arrow {
    display: flex;
    justify-content: space-between;
    padding: 8px 40px;
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

.grid-guide__arrow span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.grid-guide__info {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.grid-guide__info-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.grid-guide__info-card i {
    font-size: 1.1rem;
    color: var(--color-accent);
    flex-shrink: 0;
}

.grid-guide__info-card span {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.grid-guide__info-card strong {
    color: var(--color-text);
}

/* ========================================
   VẬN CHUYỂN (Shipping)
   ======================================== */
.shipping__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.shipping__card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.shipping__card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.shipping__card-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(45, 106, 79, 0.15);
    border-radius: var(--radius-sm);
    font-size: 1.3rem;
    color: var(--color-accent);
}

.shipping__card-region {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.shipping__card-time {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.shipping__card-time strong {
    color: var(--color-accent);
    font-weight: 600;
}

.shipping__carrier {
    text-align: center;
    margin-top: 32px;
    padding: 20px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.shipping__carrier i {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: 8px;
}

.shipping__carrier p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.shipping__carrier strong {
    color: var(--color-text);
}

/* ========================================
   LƯU Ý (Notes)
   ======================================== */
.notes__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.notes__card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 24px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

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

.notes__card--warning {
    border-color: #b5651d;
    background: rgba(181, 101, 29, 0.06);
}

.notes__card--warning .notes__card-icon {
    color: #e8a849;
    background: rgba(232, 168, 73, 0.12);
}

.notes__card-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(45, 106, 79, 0.12);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    color: var(--color-accent);
}

.notes__card-text {
    font-size: 0.92rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.notes__card-text strong {
    color: var(--color-text);
}

.notes__cta {
    text-align: center;
    margin-top: 36px;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: 56px 0 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
    margin-bottom: 40px;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.footer__logo i {
    font-size: 1.4rem;
    color: var(--color-primary-light);
}

.footer__desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    max-width: 360px;
}

.footer__title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--color-text);
}

.footer__list li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.footer__list li i {
    color: var(--color-primary-light);
    width: 18px;
    text-align: center;
}

.footer__list li a {
    color: var(--color-text-secondary);
}

.footer__list li a:hover {
    color: var(--color-accent);
}

.footer__bottom {
    border-top: 1px solid var(--color-border);
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ========================================
   FLOATING ZALO BUTTON
   ======================================== */
.floating-zalo {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 56px;
    height: 56px;
    background: var(--color-zalo);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.5rem;
    z-index: 900;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 104, 255, 0.4);
}

.floating-zalo:hover {
    color: #fff;
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(0, 104, 255, 0.5);
}

.floating-zalo__pulse {
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid var(--color-zalo);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.4); opacity: 0; }
}

/* ========================================
   SCROLL REVEAL ANIMATIONS
   ======================================== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-item.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   RESPONSIVE — Tablet (768px+)
   ======================================== */
@media (min-width: 768px) {
    .about__grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

    .footer__grid {
        grid-template-columns: 1.5fr 1fr 1fr;
    }

    .timeline::before {
        left: 50%;
        transform: translateX(-50%);
    }

    .timeline__item {
        width: 50%;
        padding-left: 0;
    }

    .timeline__item:nth-child(odd) {
        padding-right: 56px;
        text-align: right;
    }

    .timeline__item:nth-child(even) {
        margin-left: 50%;
        padding-left: 56px;
    }

    .timeline__item:nth-child(odd) .timeline__number {
        left: auto;
        right: -21px;
    }

    .timeline__item:nth-child(even) .timeline__number {
        left: -21px;
    }

    .timeline__item:nth-child(odd) .timeline__title {
        justify-content: flex-end;
    }

    .timeline__item:nth-child(odd) .timeline__note {
        border-left: none;
        border-right: 3px solid var(--color-primary);
        border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    }
}

/* ========================================
   RESPONSIVE — Desktop (1024px+)
   ======================================== */
@media (min-width: 1024px) {
    .header__nav {
        display: flex;
    }

    .header__cta {
        display: inline-flex;
    }

    .header__hamburger {
        display: none;
    }

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

    .container {
        padding: 0 40px;
    }

    .section {
        padding: 100px 0;
    }
}

/* ========================================
   RESPONSIVE — Small Mobile Portrait (≤480px)
   ======================================== */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    /* Header */
    .header__logo span {
        font-size: 1rem;
    }

    .header__logo i {
        font-size: 1.2rem;
    }

    /* Hero */
    .hero {
        padding: 100px 16px 60px;
        min-height: 85dvh;
    }

    .hero__badge {
        font-size: 0.78rem;
        padding: 6px 14px;
        margin-bottom: 18px;
    }

    .hero__title {
        font-size: 2.2rem;
        margin-bottom: 14px;
    }

    .hero__subtitle {
        font-size: 0.95rem;
        margin-bottom: 28px;
        line-height: 1.6;
    }

    .hero__actions {
        flex-direction: column;
        gap: 12px;
    }

    .hero__actions .btn {
        width: 100%;
        justify-content: center;
        padding: 14px 20px;
    }

    /* Sections */
    .section {
        padding: 56px 0;
    }

    .section__header {
        margin-bottom: 36px;
    }

    .section__icon {
        width: 48px;
        height: 48px;
        font-size: 1.2rem;
        margin-bottom: 16px;
    }

    .section__title {
        font-size: 1.5rem;
    }

    .section__subtitle {
        font-size: 0.9rem;
    }

    /* About cards */
    .about__card {
        padding: 20px;
        gap: 14px;
    }

    .about__card-icon {
        width: 42px;
        height: 42px;
        font-size: 1rem;
    }

    .about__card-title {
        font-size: 0.95rem;
    }

    .about__card-text {
        font-size: 0.85rem;
    }

    /* Timeline */
    .timeline::before {
        left: 22px;
    }

    .timeline__item {
        padding-left: 58px;
        margin-bottom: 28px;
    }

    .timeline__number {
        left: 3px;
        width: 38px;
        height: 38px;
        font-size: 0.85rem;
    }

    .timeline__card {
        padding: 18px;
    }

    .timeline__title {
        font-size: 0.98rem;
        gap: 8px;
    }

    .timeline__title i {
        font-size: 0.9rem;
    }

    .timeline__text {
        font-size: 0.85rem;
        line-height: 1.65;
    }

    .timeline__note {
        padding: 10px 14px;
        font-size: 0.8rem;
    }

    /* Plant grid */
    .grid-guide__desc {
        font-size: 0.88rem;
        margin-bottom: 24px;
    }

    .grid-guide__visual {
        padding: 18px;
        border-radius: var(--radius-md);
    }

    .grid-guide__label {
        font-size: 0.78rem;
        margin-bottom: 12px;
    }

    .plant-grid {
        gap: 5px;
    }

    .plant-grid__header {
        font-size: 0.75rem;
        padding: 6px 2px;
    }

    .plant-grid__row-label {
        font-size: 0.78rem;
        padding: 2px 6px;
    }

    .plant-grid__cell {
        font-size: 0.65rem;
        border-radius: 6px;
    }

    .grid-guide__arrow {
        padding: 6px 20px;
        font-size: 0.72rem;
    }

    .grid-guide__info-card {
        padding: 12px;
    }

    .grid-guide__info-card i {
        font-size: 0.95rem;
    }

    .grid-guide__info-card span {
        font-size: 0.82rem;
    }

    /* Shipping */
    .shipping__card {
        padding: 18px;
        gap: 16px;
    }

    .shipping__card-icon {
        width: 44px;
        height: 44px;
        font-size: 1.1rem;
    }

    .shipping__card-region {
        font-size: 0.95rem;
    }

    .shipping__card-time {
        font-size: 0.85rem;
    }

    .shipping__carrier {
        padding: 16px;
    }

    /* Notes */
    .notes__card {
        padding: 16px 18px;
        gap: 14px;
    }

    .notes__card-icon {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }

    .notes__card-text {
        font-size: 0.85rem;
    }

    .notes__cta .btn {
        width: 100%;
        justify-content: center;
    }

    /* Footer */
    .footer {
        padding: 40px 0 0;
    }

    .footer__grid {
        gap: 28px;
    }

    .footer__logo {
        font-size: 1.05rem;
    }

    .footer__desc {
        font-size: 0.85rem;
    }

    .footer__title {
        font-size: 0.95rem;
        margin-bottom: 12px;
    }

    .footer__list li {
        font-size: 0.85rem;
        margin-bottom: 8px;
    }

    .footer__bottom {
        font-size: 0.78rem;
        padding: 16px 0;
    }

    /* Floating Zalo */
    .floating-zalo {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        font-size: 1.3rem;
    }

    /* Buttons global */
    .btn {
        padding: 11px 20px;
        font-size: 0.9rem;
    }
}

/* ========================================
   RESPONSIVE — Extra Small (≤360px)
   ======================================== */
@media (max-width: 360px) {
    .container {
        padding: 0 12px;
    }

    .hero__title {
        font-size: 1.9rem;
    }

    .hero__subtitle {
        font-size: 0.88rem;
    }

    .section__title {
        font-size: 1.35rem;
    }

    .timeline__item {
        padding-left: 50px;
    }

    .timeline::before {
        left: 18px;
    }

    .timeline__number {
        width: 34px;
        height: 34px;
        font-size: 0.8rem;
        left: 1px;
    }

    .plant-grid__cell {
        font-size: 0.58rem;
    }

    .plant-grid__header {
        font-size: 0.68rem;
    }

    .mobile-menu__link {
        font-size: 1.1rem;
    }
}